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 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/

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

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

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

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

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.

Sorry, just skimmed. So can I go ahead and sell the Y-Pipe you aaked 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

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:

Where is Corbos?

Here? http://corbosautomotivenj.com/

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

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

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-)

2002? Who was your uncle?

Don't think he worked there then. Tuffer

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?

we will find out when I pick it up.