My 1996 Trans Am WS6

[ThoR294]

I realized I never made a thread for it. well, probably because I'm wasting my money on other things and not dumping them into this turd.

Anyway... I'll try to go as best as I can in chronological order.

Let's go back to 2006. Fell asleep at the wheel with my 94 formula, and rear-ended a tractor trailer. Luckily it wasn't that fast of an impact and I came out unscathed.
https://i.imgur.com/goZTpKs.jpg

Few months later, I got my 96 ws6 off of eBay
https://i.imgur.com/fD3yj3q.jpg

90k miles, all stock except for a garbage flowmaster muffler. First things first were to replace the exhaust with a real one. Brandie new from GMMG.

https://i.imgur.com/iHfSmxh.png

Installed it, took some photos. Said that 4x4 gap has to go.
https://i.imgur.com/IO1qy8m.png

Went to Mr. Strano and blew a pretty penny on Strano springs, Koni 4/4s, and an adj panhard bar.
https://i.imgur.com/i97494r.png

Much better
https://i.imgur.com/e5aoCth.png

At some point, I went to shift into 2nd doing a burnout.
https://i.imgur.com/nr9BoJ7.png

Last time I really did burnouts lol. Had to upgrade to UMI stuff.
https://i.imgur.com/lKH1Li3.png

Dad gave me an eBay short throw, and I kept missing 3rd. MGW fixed that immediately. I also came across an LS1 center console so now I have a good cupholder!
https://i.imgur.com/CeIZlx9l.jpg

Car needed brakes, so I went with LS1 fronts that were painted red.
https://i.imgur.com/DmQp0fPl.jpg

https://i.imgur.com/qkemaY0.png

Talked to our buddy Brian and managed to get a deal on a HID kit, and got some clear corners.
https://i.imgur.com/ocKcut5l.png

https://i.imgur.com/4cdfCu7l.jpg

2nd clutch replacement. first one was rear main seal pissed all over OEM clutch and made it slip. this was my "stage 2" spec that just chattered like all hell and started to slip.
https://i.imgur.com/628gDCwl.png

Superstorm sandy...
https://i.imgur.com/reRKC6Pl.png

Replaced headlight cover and fender, but it is a backyard job :bertstare:


Had a little stint with C5 Z06 wheels with nitto nt05/nt05r
https://i.imgur.com/Gnx549Gl.jpg

https://i.imgur.com/WwL2W4h.jpg

got 3rd place at Import Vs Domestic because this guy who has bracket raced for 30 years kicked my butt
https://i.imgur.com/uZrzVzg.png

Got some LPP headers (XSPower) and Y pipe. Currently no cats, but it definitely needs them. Got a PCM4LESS Tune as well to delete AIR/EGR/rear O2s
https://i.imgur.com/VmXB9Erl.jpg

https://i.imgur.com/gBgplQul.jpg

Was on LS1tech and came across a guy that made "frosted grids" out of the LT1 tails. I found a good used set, sent him 1. UPS broke them. Took my refund, got another set sent to him, and this is what I got.
https://i.imgur.com/g60X81ql.jpg

https://i.imgur.com/z79yAN2l.jpg

https://i.imgur.com/21bHvsol.jpg

Full LED bulbs as well. Reverse LEDs ftw!

Got the windows tinted, I believe 35%. Looks much better.
https://i.imgur.com/5Wf1Flel.jpg

That is all I can remember right now. Just to recap...

Current mods:
LPP Longtube Headers
Offroad Y Pipe
GMMG Catback exhaust
PCM4LESS Tune
TPIS TB Air Foil
SPEC Stage 1 Clutch (garbage)
Super sweet Strut Tower Brace
BMR Subframe Connectors (welded)
Boxed Stock Rear LCAs
3.73s (blown, rebuilding 4.11 set)
Koni 4/4s with Strano Springs
UMI Adjustable Torque Arm attached to a UMI Relocation Crossmember
UMI Adjustable Panhard Bar
MGW Short Throw Shifter
LS1 Front Brakes
Blackbird HID system
Full Sound System with all powerbass speakers and a stealth box with a powerbass 10" sub.

Currently rebuilding the rear, setting drive line angle properly, installing the alpine/amp I got from Brian, magnaflow exhaust tips I won for free from 6LE, and getting new tires. current tires are ~8 years old and showing their age pretty badly.

https://i.imgur.com/TKXDnBQl.jpg

[ar0ck]

Those clear rear tails look cool, I don't think I've ever noticed them.

[wretched73]

Shock towers need another coat of wax :)

[ThoR294]

Those clear rear tails look cool, I don't think I've ever noticed them.

I really like them. Much better than the horrible frosted honeycombs that were getting thrown around lol

Shock towers need another coat of wax :)

I suck at cleaning the engine bay lol I really have to clean it

[sweetbmxrider]

When do you actually crack the motor open and mod it?

[ThoR294]

When do you actually crack the motor open and mod it?

I was hoping for a head gasket issue so I have an excuse to tear it down and do LE1 or LE2 and a cam. I think full blown LE2 with everything is ~$2300

[sweetbmxrider]

I was hoping for a head gasket issue so I have an excuse to tear it down and do LE1 or LE2 and a cam. I think full blown LE2 with everything is ~$2300

I know a guy with a fully built 385 lt1 that would work well in your car....

[ThoR294]

I know a guy with a fully built 385 lt1 that would work well in your car....

:bertstare: what were the specs and your price? I might have asked but can't find the messages

[Blackbirdws6]

Nice summary. I 2nd the 385...with maybe a dash of N2O later on to spice things up.

[DirtyBird]

Damn, kinda jelly on the frosted tail lights, who on ls1tech did them?

[ThoR294]

Damn, kinda jelly on the frosted tail lights, who on ls1tech did them?

https://ls1tech.com/forums/member.php?u=258825

MaverickFL. Super cool guy haha

[deadtrend1]

Have pics of the tailights lit up in daylight and nighttime?

[ThoR294]

Have pics of the tailights lit up in daylight and nighttime?

I took halogen vs LED pics. Have to dig them up.

Never took with all LEDs. I need to do that for sure.

[ThoR294]

Hmmm.

So either powder coat my stock wheels silver or buy these? (https://www.oewheelsllc.com/CV27A-17095-satin-black-machined-rim-set-fits-Corvette-C7-Stingray-style?_ga=2.29217468.1838075383.1527910316-929181920.1527910316) only $100 more....

[wretched73]

I like those rims, I think they'd look good

[sweetbmxrider]

I'd save monies and spend on go fast parts!

[ThoR294]

I like those rims, I think they'd look good

Debating it, but I haven't seen any fbodies with them on so it's a hard decision. I don't wanna buy them then regret it lol

I'd save monies and spend on go fast parts!

IDK how much I need to save though :bertstare:


Oh, I just realized in my first photo, you can see my parents 92 plymoth voyager and my 79 olds toronado. I miss that Toronado lol

[ThoR294]

http://i.imgur.com/ogxOiTIl.jpg

http://i.imgur.com/HMlxTJhl.jpg

Of course.

[deadtrend1]

Buy welder, make spool

[ThoR294]

Buy welder, make spool

Trying to source a rear. If not, Eaton posi and 4.10s

[sweetbmxrider]

Didn't you have a 9 inch?

:-?

[ThoR294]

Didn't you have a 9 inch?

:-?

Yeah then I had to come up with more cash for the house. RIP the dream. Guy said he's bringing his Camaro back to stock and he'd sell it back but hasn't responded :bertstare:

[Jersey Mike]

Love seeing these type of threads!

[maroman88]

very cool. love the tails also

[IROCZman15]

nice thread about the cars story and progress!

[DirtyBird]

https://ls1tech.com/forums/member.php?u=258825

MaverickFL. Super cool guy haha

Hasnt been on in a few years, ill have to do some digging to see if theres an email for him

[ThoR294]

Hasnt been on in a few years, ill have to do some digging to see if theres an email for him

He replied to my PM immediately. He's actually going to make me the 3rd brake light frosted just like my tails

for me it says 6/2/2018 lol (when I PM'd him). tell him I sent you! lol

[DirtyBird]

Ill send him a pm, thank you sir

[ThoR294]

Pulled out the rear end and disassembled it. I had my dad bring the rear to Corbo's Garage in Somerville to have it re-assembled properly. They are a family friend shop. My uncle who passed away worked there and they are super old school.

Wheels got powercoated "Alien Silver" and mounted with the nittos by FAP AUTO in Carteret.

https://i.imgur.com/F25R2k7l.jpg

Ordered Strano Hollow Swaybars, Hawk HPS pads front/rear and stoptech rotors. Should be coming together soon.

Also got Brian's old radio that needs to be put in ;)

[LS1ow]

Fap Auto? Are you sure you dont still have that subaru?

[Blackbirdws6]

Trans case was coated in the same color. Yours looks lighter than mine but maybe its the light.

[ThoR294]

Fap Auto? Are you sure you dont still have that subaru?

I still have it :rofl: HVAC guy plowed into it last week!

https://i.imgur.com/1pP1Ibsl.jpg

https://i.imgur.com/l23GLA1l.jpg

Trans case was coated in the same color. Yours looks lighter than mine but maybe its the light.

They are super flakey in the sun. I love the color!

[ThoR294]

Decided on my vanity plate

https://i.imgur.com/45asRqbl.png

[ThoR294]

As seen at Duke Island with a frosted LED 3rd Brake light!

https://i.imgur.com/y8EJVPHl.jpg

Back in the garage to finish the brakes, strano sway bars, and install the Strano MC Brace

https://i.imgur.com/qulcbALl.jpg

Rear brakes/rear strano sway is done as per rear reinstall. once this is all done I will drive it around to break in the rear.

[wretched73]

Looks good like usual. When are those new wheels coming in?

[ThoR294]

Looks good like usual. When are those new wheels coming in?

They are on ;). Need to get the car cleaned and get pictures in the sun. Same exact color as Brian's t56 lol

[maroman88]

tails are killlllllerrrrrr

[ThoR294]

tails are killlllllerrrrrr

Thanks. They do look awesome.

Car needs paint bad lol

[ThoR294]

Recharged AC
Installed front brake pads/rotors.
Installed front strano sway bar.

Did break in procedure for the brakes, parked it in driveway, now it won't start.

No crank. all lights are super bright. couldn't do any diagnosis because it is ****ing pouring outside. zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

[LTb1ow]

lulz n00bs and optis

[ThoR294]

Fired right up this morning.
Probably heat soaked starter

[sweetbmxrider]

Prob needs ac delete

[LS1ow]

Ringlands go?

[ThoR294]

Ringlands go?
Rip cylinder 4

Prob needs ac delete

Did that in my 94 formula. Hated life daily more than usual

[Blackbirdws6]

Needs more 385

[ThoR294]

Needs more 385

needs more turdbo too. sheyyyt

[LTb1ow]

****s only money, spend it and embrace the regret

[ThoR294]

****s only money, spend it and embrace the regret

If only :rofl:

Driven the car a few times. The sway bars made a huge difference.

[ThoR294]

Oh, and my awesome vibration is still there. I am hopefully going to kill it now that I have 4 ramps I can set the car level on.

[ThoR294]

Went to set pinion angle. noticed pinion was loose.

Had it towed back to garage that rebuilt my rear, they said they had no idea how that happened. They fixed it. Pinion angle set... vibration gone! only took like 8 years lol

[Blackbirdws6]

All the :bertstare:

[ThoR294]

All the :bertstare:

pretty much.

[sweetbmxrider]

:ban:

[ThoR294]

:ban:

Well hey I'll be driving it more now. And I can go to island!

[ThoR294]

Spoke too soon. Vibration still there just at a higher speed (~75mph). Had a local shop check driveline angles and it's all good. About to throw in a stock transmission cross member and torque arm.

If it's still there after that I'm parting it out.

[ThoR294]

Stock arm and crossmember installed. Vibration still present. Going to measure distance between trans and rear and have PST make me a driveshaft. If that doesn't fix it I'm parting out

[ar0ck]

Dibs on the bumpers

[wretched73]

What did you actually do to fix the vibration? Other than go back to stock.

Is the driveshaft out of balance? Bent rim? Unbalanced tired?

[ThoR294]

What did you actually do to fix the vibration? Other than go back to stock.

Is the driveshaft out of balance? Bent rim? Unbalanced tired?

This has been going on for years. so I have swapped:

driveshafts (had my oem one balanced, threw in a LS1 driveshaft also, now im back to OEM)
rear end (mind you, current one was inspected and rebuilt fully, axles are not bent. all new bearings, new posi, new ring/pinion.)
wheels/tires
transmission
now transmission crossmember and torque arm.

Everything that spins has been replaced minus the front stuff, but it is 100% a driveline vibration, as it is only present with the car in neutral or clutch pedal pressed down. It feels like its coming from the rear.

I find it hard to believe it is still the driveshaft, after having mine balanced and using another one from an LS car. I am out of ideas at this point. I think my last ditch effort will be to call Larry at 2nd gen engineering and see if he can diagnose it. I am 100% serious about parting out too lol. I can't drive the ****ing car. I'd be better off keeping parts I want and scrapping/parting the rest of the car and buying another one!

Dibs on the bumpers

front is decent, back one sucks :lol:

Also, I'm an idiot. I forgot to measure length for driveshaft while I was doing torque arm install. zzzzzzzzzzzzzzzzzzzz

[wretched73]

This has been going on for years. so I have swapped:

driveshafts (had my oem one balanced, threw in a LS1 driveshaft also, now im back to OEM)
rear end (mind you, current one was inspected and rebuilt fully, axles are not bent. all new bearings, new posi, new ring/pinion.)
wheels/tires
transmission
now transmission crossmember and torque arm.

Everything that spins has been replaced minus the front stuff, but it is 100% a driveline vibration, as it is only present with the car in neutral or clutch pedal pressed down. It feels like its coming from the rear.

I find it hard to believe it is still the driveshaft, after having mine balanced and using another one from an LS car. I am out of ideas at this point. I think my last ditch effort will be to call Larry at 2nd gen engineering and see if he can diagnose it. I am 100% serious about parting out too lol. I can't drive the ****ing car. I'd be better off keeping parts I want and scrapping/parting the rest of the car and buying another one!

Where's that tricycle rider when you need him? Maybe he can diagnose. This looks like a huge red flag to me.

[ThoR294]

Where's that tricycle rider when you need him? Maybe he can diagnose. This looks like a huge red flag to me.

who is that :lol:

Yup that's my red flag too, focusing on driveline angle stuff.

[WildBillyT]

Where's that tricycle rider when you need him? Maybe he can diagnose. This looks like a huge red flag to me.

Same here. I still think it's driveline angle related.

FWIW I'd see about strapping a GoPro under the car facing the diff.

Edit:

One driveline thing not mentioned swapping was the diff yoke. Did you try different ones of those?

[LTb1ow]

If it only does it in neutral and clutch in... just drive it and don't do those things?

Do you drive normally with the clutch in?

[ThoR294]

Same here. I still think it's driveline angle related.

FWIW I'd see about strapping a GoPro under the car facing the diff.

Edit:

One driveline thing not mentioned swapping was the diff yoke. Did you try different ones of those?

I do have a gopro. my luck it'd fall off and get rekt by the driveshaft :bertstare:

I swapped complete rear ends. same issue

If it only does it in neutral and clutch in... just drive it and don't do those things?

Do you drive normally with the clutch in?

That split second of downshifting is rough with that vibration lol

[LTb1ow]

I mean, sounds like clutch/trans related to me.

[Blackbirdws6]

I'm confused. So it vibrates all the time but worse with clutch in or in neutral (clutch out)? Details matter.

[ThoR294]

I'm confused. So it vibrates all the time but worse with clutch in or in neutral (clutch out)? Details matter.

haha ok let me run it down.

In gear, accelerating, vibration does not exist.

In gear, decel, vibration is KINDA there but not very noticable.

In gear, clutch pedal down, vibration is bad.

Neutral, clutch pedal down, vibration is same as above.

Neutral, clutch pedal up, vibration is the same as the above 2.

turning engine on or off doesn't change anything

I mean, sounds like clutch/trans related to me.



I have read that the output shaft bushing? may cause a vibration. I swapped transmissions and it didn't change. I've also had 2 spec clutches in. new flywheel too...

[wretched73]

I'm not sure why you're doing anything other than accelerating.

What does it do when you are driving a steady speed while in gear? IE cruising down the highway

[WildBillyT]

haha ok let me run it down.

In gear, accelerating, vibration does not exist.

In gear, decel, vibration is KINDA there but not very noticable.

In gear, clutch pedal down, vibration is bad.

Neutral, clutch pedal down, vibration is same as above.

Neutral, clutch pedal up, vibration is the same as the above 2.

turning engine on or off doesn't change anything





I have read that the output shaft bushing? may cause a vibration. I swapped transmissions and it didn't change. I've also had 2 spec clutches in. new flywheel too...

Also confirming, it doesn't vibrate when the car is not moving, clutch in (shifter not just in N), and you rev to 5-6k?

[ThoR294]

I'm not sure why you're doing anything other than accelerating.

What does it do when you are driving a steady speed while in gear? IE cruising down the highway

:nick:

what i mentioned. if i'm cruising you won't feel it unless i let off the gas.

Also confirming, it doesn't vibrate when the car is not moving, clutch in (shifter not just in N), and you rev to 5-6k?

correct. only over 70mph youll feel it.

[LTb1ow]

Since you never race it, why does going about 65mph matter anyways?

[ThoR294]

Since you never race it, why does going about 65mph matter anyways?

if i did 65 on 287 i'd get run over :nick:

[wretched73]

You have done a garbage job describing your issue.

Only happens when you're doing OVER 70 mph? Does it stop at a certain MPH? Like 85 mph?

Only when clutch is depressed or when in neutral. Same if engine is running or not.

So trans is spinning but motor isn't. That rules out clutch IMO. Sounds like trans then. When forward or backward for is applied, no issue. When it free spins there is an issue.

BLS knows the most about broken LT1 T56 trans. Maybe he knows what could be free spinning and ruining your life.

Is the trans fluid at the correct level?

[ThoR294]

You have done a garbage job describing your issue.

Only happens when you're doing OVER 70 mph? Does it stop at a certain MPH? Like 85 mph?

Only when clutch is depressed or when in neutral. Same if engine is running or not.

So trans is spinning but motor isn't. That rules out clutch IMO. Sounds like trans then. When forward or backward for is applied, no issue. When it free spins there is an issue.

BLS knows the most about broken LT1 T56 trans. Maybe he knows what could be free spinning and ruining your life.

Is the trans fluid at the correct level?


The above I described only over 70 mph. Gets worse gradually above that speed. Doesn't stop.

Trans fluid should be fine I'll check when it's up in the air. I find it hard to believe 2 transmissions would have same issue but I got nothing left after driveshaft

[V]

Unibody bent

[wretched73]

When you part it out I have dibs on the trans

[ThoR294]

Unibody bent

i honestly wouldnt be surprised if that was actually it

[LTb1ow]

i honestly wouldnt be surprised if that was actually it

How would that make noise when the clutch is in, but not when the drive train is engaged?

Doesn't make sense to me, when the driveline is loaded would be peak noise/vibration levels if you had something goofy misaligned.

[ThoR294]

How would that make noise when the clutch is in, but not when the drive train is engaged?

Doesn't make sense to me, when the driveline is loaded would be peak noise/vibration levels if you had something goofy misaligned.

because I have no other answer at this point lol

[LTb1ow]

because I have no other answer at this point lol

Not to be an ass, but, the consistent factor is the person who wrenched on this correct? If so, has someone double checked the work?

[ThoR294]

Not to be an ass, but, the consistent factor is the person who wrenched on this correct? If so, has someone double checked the work?

I had a shop set the pinion angle with the aftermarket torque arm and verify everything is tight. He said the angle was off a bit but everything else was tight. it toned the vibration down but its still there.

I just have to call Larry and drop it off there.

You're not an ass. I'm the ass for letting it happen this long lol.

[Blackbirdws6]

I had a shop set the pinion angle with the aftermarket torque arm and verify everything is tight. He said the angle was off a bit but everything else was tight. it toned the vibration down but its still there.

I just have to call Larry and drop it off there.

You're not an ass. I'm the ass for letting it happen this long lol.

The fact that the vibration improved with a reset of the pinion angle is telling. I'd guess a second set of eyes on that would be a good start.

[ThoR294]

The fact that the vibration improved with a reset of the pinion angle is telling. I'd guess a second set of eyes on that would be a good start.

the fact that it changes with load too keeps making me think it is angle related. I'll call him today and set something up

[Blackbirdws6]

the fact that it changes with load too keeps making me think it is angle related. I'll call him today and set something up

Also worth noting that you do not feel it on acceleration is important. So again, guessing the driveline angle isn't where it needs to be.

[ThoR294]

Spoke with Larry.

Going to stop by on Monday and we are going to inspect the output shaft on the T56. If it looks good, we are going to measure for a driveshaft to be made. We were thinking about using a used driveshaft but we want to be certain it is balanced and joints are good.

[V]

Spoke with Larry.

Going to stop by on Monday and we are going to inspect the output shaft on the T56. If it looks good, we are going to measure for a driveshaft to be made. We were thinking about using a used driveshaft but we want to be certain it is balanced and joints are good.

I got 3 or 4 driveshafts if you wanna borrow them to swap

Could you try plugging the tailshaft and run it up to speed without the driveshaft?

[ThoR294]

Drove with Larry so he could feel the vibration (insert Marky Mark joke here).

Checked over the rear. All looks good on the back side.

2 possible causes up front:

1)
The Y pipe/catback connection is slightly rubbing against the tunnel. We talked about it and I am going to just get a kooks catted y-pipe to kill 3 birds with one stone. 1) tone down the rasp, 2) fix it from hitting the tunnel, and 3) maybe get rid of or reduce vibration transmitted to the car.

2)
Front U Joint on the D/S has a little bit of play in it. We are going to get a driveshaft since it'll be an upgrade and it will eliminate any issues with my current one.

Stay tuned bros

[Blackbirdws6]

Hope it helps or dibs on the hood and front bumper.

[ThoR294]

Hope it helps or dibs on the hood and front bumper.

thinking about the part out, i would almost keep half the damn car to put into my next one :rofl: so i'd pretty much sell headlights, engine, trans, all body pieces (minus tails), headers/y pipe. lol

[LTb1ow]

You couldn't drive it cause of exhaust vibrating?

bro.

[ThoR294]

You couldn't drive it cause of exhaust vibrating?

bro.

what could be happening is the ujoint vibration is amplified through the exhaust lol. the u joint is definitely ****ed up because there is play in it.

[sweetbmxrider]

I find it hard to believe it is still the driveshaft, after having mine balanced and using another one from an LS car.

:nick::nick::nick::nick::nick::nick::nick::nick::n ick:

[ThoR294]

:nick::nick::nick::nick::nick::nick::nick:

learnt my lesson again. just because its "rebuilt" or "new" don't mean its good! :shock:

but we shall see.

[IROCZman15]

just buy my brothers 93 trans am instead

[LTb1ow]

Updates???

[ThoR294]

Updates???

Saving $$$ up for said parts. :mrgreen:

[wretched73]

So how much for the trans?

[ThoR294]

So how much for the trans?

:nick:

What do they go for now? $1200? Lol

[sweetbmxrider]

:nick:

What do they go for now? $1200? Lol

Maybe without vibrations.....

I got $350 burning a hole in my pocket :-?

[Blackbirdws6]

Let me know when I can come get the bumper and hood.

[wretched73]

:nick:

What do they go for now? $1200? Lol

Maybe $1200 if it was from an LS1.

[ThoR294]

Maybe without vibrations.....

I got $350 burning a hole in my pocket :-?

Trans is good!

Let me know when I can come get the bumper and hood.

What's wrong with yours??

Maybe $1200 if it was from an LS1.

Probably

[Blackbirdws6]

What's wrong with yours??


I have plans....

[ThoR294]

Since the $500 subaru is fixed... my spot in the garage is back open, and the bird is getting love again.

https://i.imgur.com/L3QF1rbl.png

Measured distance between the tailshaft housing and rear. 44.5" inches. Called PST and they set me up with a driveshaft.

Going to remove my Y-pipe and order the kooks catted y-pipe from WS6 store too. maybe I can finally daily drive this thing!

[ThoR294]

Fedex man brought something nice yesterday
https://i.imgur.com/WNtQFIrl.jpg

Out with the old...
https://i.imgur.com/KvJQaCDl.jpg

In with the new!
https://i.imgur.com/aSYRP44l.jpg

Vibration is much less. Still feel it on decel, probably from stupid ass y-pipe. Jersey Mike has a TSP Y he is willing to part with so ill try that first

[ThoR294]

Not much has been done. Replaced belt tensioner since it was squealing a bit. fresh inspection. oil change... Y pipe sitting in garage gotta install it, i really hope it fixes the vibration.

[ThoR294]

Car is currently at ProFab Chassis investigating the dreaded vibration. They noticed the motor mounts were shot, and that the exhaust is pretty much on the k member lol. They also said the panhard wasn't adjusted properly. They are going to do mounts, replace Y-pipe (merge sucks so i want a different one anyway), and center rear, then go from there.

[BonzoHansen]

motor mounts and fix the exhaust you say? hmm......

[LS1ow]

so if its fixed your racing it, right?

[ThoR294]

motor mounts and fix the exhaust you say? hmm......

Duke Island is more than just a cookout! LOL.

so if its fixed your racing it, right?

no DRs :bertstare::lol:

[Blackbirdws6]

no DRs :bertstare::lol:

I've got some MT DR's you can borrow.

[ThoR294]

I've got some MT DR's you can borrow.

Id like to enjoy the car before I grenade the rear again. Plus I'll be doing low 13s not worth a rental lol

[Blackbirdws6]

Id like to enjoy the car before I grenade the rear again. Plus I'll be doing low 13s not worth a rental lol

So if I say that you're probably in the 14s, I think you need to prove me wrong. :bertstare:

[LS1ow]

Id like to enjoy the car before I grenade the rear again. Plus I'll be doing low 13s not worth a rental lol

https://zizi-ilgiardinodelgusto.weebly.com/uploads/1/0/6/8/106882427/logo-soft.png

[ThoR294]

So if I say that you're probably in the 14s, I think you need to prove me wrong. :bertstare:

If I break out of the 14s you pay my way at the rental :bertstare: :lol:

piclol

if that's a synonym for broke, sure LOL.

[Blackbirdws6]

If I break out of the 14s you pay my way at the rental :bertstare: :lol:


Cute suggestion but I would hope your pride is worth more than $200.....

[ThoR294]

Cute suggestion but I would hope your pride is worth more than $200.....

Ill keep you updated on my cars progress lol

[BonzoHansen]

Cute suggestion but I would hope your pride is worth more than $200.....

doubtful

[ThoR294]

as per them:

replaced motor mounts, so exhaust no longer hits car anywhere.
adjusted y pipe since engine is now in proper place
replaced rear pinion seal since it was puking
adjusted panhard properly since it was not centered
replaced rear fluid since a bunch of metal came out (this will be 3rd drain and fill in like 550miles since rebuild)

vibration still there 100%

Steering shaft is now hitting headers really bad. Going to put LS1 steering shaft in. Also going to call Corbos (who rebuilt rear) and tell them what's going on. Not sure if I mentioned earlier, but they left pinion loose. I think they ****ed rear, but I have a feeling thats still not my vibration. i ****ing give up

[LTb1ow]

I can't say much cause I have had my bone headed moments, BUT... you have been chasing vibration issues and never mentioned or looked into shot motor mounts causing headers to hit floor boards?

[ThoR294]

I can't say much cause I have had my bone headed moments, BUT... you have been chasing vibration issues and never mentioned or looked into shot motor mounts causing headers to hit floor boards?

I had them in back of mind but it was happening over 70 so I ignored engine side. So they were bad but my problem still exists

I'm really thinking it's in the transmission. Only thing that isn't new

[BonzoHansen]

replaced rear pinion seal since it was puking

replaced rear fluid since a bunch of metal came out (this will be 3rd drain and fill in like 550miles since rebuild)

vibration still there 100%

......, but they left pinion loose. I think they ****ed rear, but I have a feeling thats still not my vibration. i ****ing give up

Your rear is ****ed. You failed to mention all this.

[ThoR294]

Your rear is ****ed. You failed to mention all this.

Vibration was there before and after rear rebuild. $100 says it'll still vibrate after rear is fixed.

Have to see what happens with shop that did the rebuild.

[wretched73]

Can you give a little summary with the description of the vibration and where it is felt, followed by what has been done? It gets hard to follow in long threads

[ThoR294]

Can you give a little summary with the description of the vibration and where it is felt, followed by what has been done? It gets hard to follow in long threads

Over 70mph with clutch pedal in and or car in neutral. I've replaced everything transmission and back. Literally. The only thing that I didn't replace new was the transmission. I swapped with a used one.

Vibration slightly noticable in gear on decel. Pretty much non existent when throttle is pushed in gear

[ThoR294]

Corbos garage said they'd inspect the rear tomorrow. It is making noise. I hope they are willing to fix it if them leaving pinion loose ****ed my rear

[wretched73]

Where do you feel the vibration? Steering wheel? By driver's feet? Passenger feet? Behind you?

Trying to isolate the issue here

[ThoR294]

Where do you feel the vibration? Steering wheel? By driver's feet? Passenger feet? Behind you?

Trying to isolate the issue here

Sorry. Key details I missed lol. It feels like driveshaft is out balance, so butt/

[LS1ow]

so the vibration only happens with the clutch pushed in? its barely noticeable otherwise?

[ThoR294]

so the vibration only happens with the clutch pushed in? its barely noticeable otherwise?

Or in neutral. Under 70mph in neutral or clutch in car smooth as butter

[wretched73]

Still waiting to see a list of everything you've tried so far lolol

I can't recall everything you've done and we're on page 6 of this thread

[LS1ow]

so it doesn't vibrate while in gear/under engine load at any time?

[ThoR294]

Still waiting to see a list of everything you've tried so far lolol

I can't recall everything you've done and we're on page 6 of this thread

Lolol jerk.

-swapped rears, rebuilt rear
-rear lcas
-new driveshaft and ls1 shaft
-swapped used t56s
-torque arm aftermarket and stock
-wheels and tires (c5z set, and OEM straightened and coated with new tires)
-pinion angle
-trans mount

Just did:
Motor mounts

so it doesn't vibrate while in gear/under engine load at any time?

Don't think so. I just drove it and it's smooth in gear. Motor mounts did help with engine side vibration obviously lol.


Just dropped off at corbos. Having them inspect rear, he said he'd make it right. They are going to reinstall the uni torque arm/cross member and do ls1 steering shaft.

[Jersey Mike]

Sorry, just skimmed. So can I go ahead and sell the Y-Pipe you aaked me to hold for you?

[ThoR294]

Sorry, just skimmed. So can I go ahead and sell the Y-Pipe you asked me to hold for you?

sorry man I haven't been able to make the trip up to you. I do still need it. If you are going to come to the October meet i can pick it up then :) and for the record i didn't ask for a hold haha

[sweetbmxrider]

Did you replace the engine yet? If not I have one that is vibration free.....

[ThoR294]

Did you replace the engine yet? If not I have one that is vibration free.....

that'll be next if brian's t56 doesnt fix it (if it comes to that) :bertstare: :lol:

[PolarBear]

Corbos garage said they'd inspect the rear tomorrow. It is making noise. I hope they are willing to fix it if them leaving pinion loose ****ed my rear

Where is Corbos?

[BonzoHansen]

Where is Corbos?

Here? http://corbosautomotivenj.com/

[LTb1ow]

Prob would have been cheaper to swap in a JY SBE 5.3

Would make more power too.

[ThoR294]

Prob would have been cheaper to swap in a JY SBE 5.3

Would make more power too.

Probably would be cheaper to drive car off Cliff and buy another

[PolarBear]

Here? http://corbosautomotivenj.com/

I worked for there for a bit, that's why I was asking. Larry was a good guy and fair/honest to his customers, but I HATED working for him.

[ThoR294]

I worked for there for a bit, that's why I was asking. Larry was a good guy and fair/honest to his customers, but I HATED working for him.

When did you work there? My uncle worked there till he passed away

[Blackbirdws6]

So when do you want to come buy this trans?

[ThoR294]

So when do you want to come buy this trans?

Once I get confirmation it's the trans that's bad :bertstare: p.s. answer my text 8-)

[PolarBear]

When did you work there? My uncle worked there till he passed away

2002? Who was your uncle?

[ThoR294]

2002? Who was your uncle?

Don't think he worked there then. Tuffer

[ThoR294]

Update from Corbos:

Pinion bearing was ****ed, they replaced it. Everything else looked OK. They put back in my UMI torque arm and xmember as well.

[Blackbirdws6]

Update from Corbos:

Pinion bearing was ****ed, they replaced it. Everything else looked OK. They put back in my UMI torque arm and xmember as well.

But does it vibrate?

[ThoR294]

But does it vibrate?

we will find out when I pick it up.

[Blackbirdws6]

we will find out when I pick it up.

Quite the cliff hanger.

[LTb1ow]

http://m.quickmeme.com/img/fc/fc6bbdd5c2097607eea8e04166ff1177d9f6be371b3bf8f748 5114a521b41453.jpg

[ThoR294]

He hasn't called me back to say come get it.... Might have to wait till Monday!

[Blackbirdws6]

Update from Corbos:

Pinion bearing was ****ed, they replaced it. Everything else looked OK. They put back in my UMI torque arm and xmember as well.

He hasn't called me back to say come get it.... Might have to wait till Monday!

Wut

[ThoR294]

Wut

I called him for an update. He told me that then he said they are buttoning it up and he'd test drive it then call me back :shock:

[sweetbmxrider]

:ban:

[The_Bishop]

I gotta think that if the pinion bearing was FUBAR, it didn't do the pinion *or* ring gear any favors. Also, how much metal did it dump in the rest of the bearings?

[LS1ow]

have you thought of just welding the diff and adding a hydro brake?

[ThoR294]

I gotta think that if the pinion bearing was FUBAR, it didn't do the pinion *or* ring gear any favors. Also, how much metal did it dump in the rest of the bearings?

He said ring and pinion themselves were OK. We shall see....

have you thought of just welding the diff and adding a hydro brake?

prob will still vibrate

[LTb1ow]

have you thought of just welding the diff and adding a jake brake?

It would sound pretty cool on decels at least .

8-)

[ThoR294]

Car is done. Picking it up around 430. We shall see what happens....

Profab chassis called me back, he said he did research and he is blaming the transmission. Apparently a common issue with t56s? Something about one of the shafts getting too much play in them

[LTb1ow]

And?

[Blackbirdws6]

And?

Opti took a dump

[ThoR294]

Mother in laws NAS had a hard drive failure, so had to stop over there. got to Corbos around 530pm, got the keys so I could pick it up later, but wife didn't want to so....... i guess tomorrow :|

[PolarBear]

All your excuses really suck

[ThoR294]

All your excuses really suck

i have a strong feeling its going to need a trans lol

[wretched73]

i have a strong feeling its going to need a trans lol

I'll buy your old one

[ThoR294]

I'll buy your old one

Deal. I'm probably going to grab Brian's one and send that out to tick then swap it with mine. I'll keep you posted obviously. Gotta save money probably gonna do clutch too

[wretched73]

Deal. I'm probably going to grab Brian's one and send that out to tick then swap it with mine. I'll keep you posted obviously. Gotta save money probably gonna do clutch too

Sounds like a plan to me

[PolarBear]

Deal. I'm probably going to grab Brian's one and send that out to tick then swap it with mine. I'll keep you posted obviously. Gotta save money probably gonna do clutch too

I have a good used clutch you can have

[LTb1ow]

After all this you weren't anxious to get the car back?

#confused

[sweetbmxrider]

Might as well throw the 385 in there while the trans is out

[ThoR294]

Driving it home now. Exhaust don't feel right up front lol. Vibration is still there but it's definitely not as bad as before. It's gotten better. The rear is pretty loud on decel in neutral especially around 30-35

[ThoR294]

about to just give up on the car lol headache after headache. id have to spend a lot to fix the damn trans and still have to gamble on the rear. I think it's toast and don't really feel like going back to Corbos again.

[LTb1ow]

I will sell you a quiet S60 with DS for 3k

[ThoR294]

still gonna vibrate lol

[V]

At this point, swap in just about any rear, see if there's a difference and then go from there. For all you know, the axle tubes could be bent and a rebuild will never fix that.

[ThoR294]

At this point, swap in just about any rear, see if there's a difference and then go from there. For all you know, the axle tubes could be bent and a rebuild will never fix that.

the axles themselves bent or the housing bent?

ive had 2-3 rears in this car lol

[wretched73]

Part it out and sell me your trans

[LS1ow]

the axles themselves bent or the housing bent?

ive had 2-3 rears in this car lol

wait, you've had 2-3 rears in the car and the car has always made the same vibration?

[LTb1ow]

This thread keeps delivering

[ThoR294]

wait, you've had 2-3 rears in the car and the car has always made the same vibration?

Yes?

This thread keeps delivering

Pretty sure case is closed at this point lol question is do I have the time and money to do it

[V]

Was the car ever in an accident that could have bent the unibody?

[LS1ow]

Yes?




if you've swapped out the rear, and the problem never left, why do you still think it is the rear?

[Blackbirdws6]

if you've swapped out the rear, and the problem never left, why do you still think it is the rear?

Cheaper than a new trans :bertstare:

[ThoR294]

Was the car ever in an accident that could have bent the unibody?

Not that I am aware of

if you've swapped out the rear, and the problem never left, why do you still think it is the rear?

Swapped transmissions, swapped rears. Only reason rear was in question is because corbos ****ed the rebuild up and left pinion loose.

Cheaper than a new trans :bertstare:

Should have just went 9" or s60 lol

[The_Bishop]

You checked driveshaft/u-joint angles I presume? Both vertical *and* horizontal?

[ThoR294]

You checked driveshaft/u-joint angles I presume? Both vertical *and* horizontal?

Yes profab checked that all out.

[LTb1ow]

How ironic would it be if all this time it was just a bad misfire from a crappy opti?

[ThoR294]

How ironic would it be if all this time it was just a bad misfire from a crappy opti?

It's an LT1 so has to be the Opti duh

[sweetbmxrider]

You had a vibration free 9 inch and could have a vibration free 385 with 10 second slips all over your interior....

[LTb1ow]

It's an LT1 so has to be the Opti duh

I have an LT1 and it has no opti.

:bertstare:

Also doesn't vibrate, even on solid motor mounts.

Its def your opti.

[ThoR294]

You had a vibration free 9 inch and could have a vibration free 385 with 10 second slips all over your interior....

Trust me. I know lol.

I have an LT1 and it has no opti.

:bertstare:

Also doesn't vibrate, even on solid motor mounts.

Its def your opti.

True true. That torqhead kit is nice

[LTb1ow]

Another dumb question, is mystery vibration in your head or have others driven car and confirmed?

[ThoR294]

Another dumb question, is mystery vibration in your head or have others driven car and confirmed?

haha, larry felt it. thats how we found the bad u joint on driveshaft, which prompted me to get a PST driveshaft

[wretched73]

When can I come drop the trans?

[LS1ow]

forgive me for not reading, but does the car have a body mounted torque arm?

[ThoR294]

forgive me for not reading, but does the car have a body mounted torque arm?

Did. Then I put stock back in, didn't change a thing

[PolarBear]

When can I come drop the trans?

lol

[LTb1ow]

When is the part out?