10 Bolt

[Ispooledurmom]

So everyone is telling me the 10 bolts in f bodys are very weak. I plan on dropping an ls2 in and i was wondering will the rear hold up if I put a better set of gears in and moser axles? Possibly looking at a detroit locker to.

Dont have the cash for a 9 inch so dont say it:-?

[Formulalt1]

Going fast costs money and you are gambling with a 7.625 ring gear no matter what you do to it. I have heard of people throwing every mod known to man at the 10 bolt and getting it to run 10's or there about but at the end of the day you still have a mightly large weak link. IMO, if you plan on adding serious mods it isn't the place to skimp on but to each there own. IMO your best bet is to save up and upgrade the rear (9 Inch, 12 bolt or whatever).

[Ispooledurmom]

These isnt a big price differnce between the 12 bolt and the 9 inch is there something better about one or the other?

Also will the stock rear be ok with the ls2 if i baby it until I have the money for the new rear?

[Formulalt1]

Stick or auto?.

Edit- NVM, Talk to Kasey/Savage messiah. He has a V6 auto 4th Gen and last I talked to him I think he broke 3 10 bolts?

[Formulalt1]

Also, yes there is a price difference. The 12 bolt is usually more expensive from what I have seen, the S60 looks like a good deal from the feedback I have got.

[Ispooledurmom]

Its an m6 and i plan on swapping out the trans for D&D's magnum t56...pretty much planning on overhauling the entire car in a year or two wanna turbo the motor also

[Formulalt1]

Sounds like a sweet project. Might as well wait and do it up right or see what you can make the ten bolt handle and not expect too much out of it. I have a upgraded rear ready to go into mine but I am going to try and break mine first, just want to see how easy it is...

[NJ346]

if it's an M6....then buy the rear first. Don't put an LS2 in the car first. It's like putting a cam in these cars....you should have the supporting mods done before you do it. I've broken the 10 bolt twice in the past 10 days...and I'm just a bolt-on ls1

[Ispooledurmom]

Its a roller so i kinda need the motor in there got a good deal on the ls2 so its going in. How hard is the s60 to put in?

[JSPERFORMANCE]

S60 os a direct bolt in.. The only thing that needs to be done is shortening the driveshaft a little. 12 bolt is an absolute bolt in.

I can get you some real good pricing on all Strange products, contact me if I can help.

[Ispooledurmom]

Well i gotta shorten the driveshaft anyway with the magnum t56 so thats no big deal
In everyones honest opinion what should i get a 12 bolt 9 inch or s60

And thanks ill keep that in mind im gonna need all the help i can get i spend money like i got deep pockets!

[sweetbmxrider]

don't put a 12 bolt behind an m6

[Ispooledurmom]

And whys that?

[JSPERFORMANCE]

Yeah, why is that?

[BonzoHansen]

Dont have the cash for a 9 inch so dont say it:-?

...LS2......D&D's magnum t56...pretty much planning on overhauling the entire car....turbo...

Oh no, don't cry $$ with a shopping list like that! :p

[Ispooledurmom]

Oh no, don't cry $$ with a shopping list like that! :p

I know I know I have big plans lol:twisted:

[LTb1ow]

Yeah, why is that?

I think it is marginally weaker than a ford rear, but not sure if thats what he meant.

Always build your car from the back to the front, ground up. That being said, I have yet to break my rear end. Heads/cam car. I be nice to my ten bolt. :lol:

[JSPERFORMANCE]

While slightly weaker than the 9 inch or s60 the 12 bolt is more than capable of handeling the power output of 90% if the f-body population.. We have 12 bolts behind some pretty serious drivetrains and going well into the eight second range. There is no reason why the 12 bolt should be a problem. It is more a prefrence of GM, Ford, or Mopar styling..

[alamantia]

A wise investment would be a tourque arm bracket rather than using the tailshaft of the transmission. I believe UMI and BMR make them.

[Ispooledurmom]

Wouldnt panhard bars help the rear hold up to?

[NJ Torque]

Wouldnt panhard bars help the rear hold up to?

Panhard? no...

LCA's to prevent wheel hop, yes...

[NastyEllEssWon]

get a 9'' from what i hear 12 bolts are still kind of a stock design and still are prone to breaking. i wont speak about the 12 bolt ask cbr mike though, he's had his 2 years and i think he's already rebuilt it at least once...not sure if he HAD to though.




as for the 9''....i have one in my car...i like it...need some tires...but the rear holds up very well...its jsut heavy :nod:

[sweetbmxrider]

While slightly weaker than the 9 inch or s60 the 12 bolt is more than capable of handeling the power output of 90% if the f-body population.. We have 12 bolts behind some pretty serious drivetrains and going well into the eight second range. There is no reason why the 12 bolt should be a problem. It is more a prefrence of GM, Ford, or Mopar styling..

what tranny is in front of said 12 bolt? doing 5500 dumps in a t56 with dr's isn't going to last long with a 12 bolt.

[NJ346]

Yeah, why is that?

12 bolts weren't meant to have a torque arm on them.

The 9in has an okay posi.

The S60 is probably the strongest, but I believe it is the heaviest and has the most drivetrain loss out of all of them.

[Ispooledurmom]

Ok so hears what i got so far the 12 bolt is out the window cause this is gonna be my DD s60 is heavy so i guess im going with the good ol 9 inch.

So this is gonna be the setup LS2 - Magnum T56 - And a moser 9 inch with a 3.50 or 3.89 axle ratio havent decided yet.

[NastyEllEssWon]

Ok so hears what i got so far the 12 bolt is out the window cause this is gonna be my DD s60 is heavy so i guess im going with the good ol 9 inch.

So this is gonna be the setup LS2 - Magnum T56 - And a moser 9 inch with a 3.50 or 3.89 axle ratio havent decided yet.




i have 3:70s. love em

[NJ346]

Moser 9in...I'll be sporting one soon enough.

[Ispooledurmom]

How hard is the install on the moser is it a direct bolt in any fabrication recuired?

And i couldnt find 3.70's for a 9 inch i was looking for them or 3.73's

[NJ Torque]

My ten bolt seems to be doing OK behind my auto... but i'm sure it'll be on its way soon enough.

[NastyEllEssWon]

call bob here....http://www.exoticperformanceplus.com/ he's the one that built the moser 9'' that came with my car...even though i didnt buy it from him he was still nice enough to answer some of my questions about the build order from the previous owner when i broke my driveshaft. you can get the 3:70s from there too :nod:



http://i71.photobucket.com/albums/i125/Jsaul83/HPIM0676.jpg



do it. do it :nod: best mod you can do.

[JSPERFORMANCE]

So far all of you have managed to take what I have said and totally misconstrue it.

The 12bolt is PLENTY strong enough for most applications. AS I said I can count at least two cars I have done with 12 bolts that run deep into the 9's and one off hand that is in the eights. All of these cars have trans brakes and are at least 3400 lbs. Unless you have 1000+ horsepower you really do not have to worry about braking the 12 bolt any more than anyther rear. As far as 12 bolts not being intended to have a torque arm bracket, that is true.. FOR STOCK HOUSINGS. The Strange housing is a completely aftermarket casting whish IS designed to have a torque arm mount.

9 inch works ok but has the most amount of parasitic drag due to the location of the pinion in relation to the ring gear. I have one in my Camaro and have scattered it all over the track so it is not exempt from breakage either. Also the torqe arm mount involves mutiple brackets welded to the stamped steel rear housing, not casted into the differential center section itself..

60 is a bit heaver than the other two but it is by far the strongest. The pinion/ring relationship makes this rear have about the same parasitic loss as a 12 bolt does. Only other draw back is the need for a slightly shorter driveshaft due to the overall size of the housing. The 60 like the 12 bolt, is a completely aftermarket casting whish is designed to have a torque arm mount so there are no problems there either.

Remember EVERY one of these rears WILL break eventually, EVERYTHING BREAKS in racing/high performance, it is just a matter of how long it lasts in between service or repairs..So to repeat myself.. For the majority of people any one of these rears will be a capable unit. It just boils down to the pros and cons involved with each particular design.

[Mike]

12 bolts weren't meant to have a torque arm on them.

The 9in has an okay posi.

The S60 is probably the strongest, but I believe it is the heaviest and has the most drivetrain loss out of all of them.

so a ford rear that came from cars that never had torque arms is more meant to have one? while the moser tq arm mount sucks, the strange one is just like stock with the long bolts and nuts

[thunder]

So far all of you have managed to take what I have said and totally misconstrue it.

The 12bolt is PLENTY strong enough for most applications. AS I said I can count at least two cars I have done with 12 bolts that run deep into the 9's and one off hand that is in the eights. All of these cars have trans brakes and are at least 3400 lbs. Unless you have 1000+ horsepower you really do not have to worry about braking the 12 bolt any more than anyther rear. As far as 12 bolts not being intended to have a torque arm bracket, that is true.. FOR STOCK HOUSINGS. The Strange housing is a completely aftermarket casting whish IS designed to have a torque arm mount.

9 inch works ok but has the most amount of parasitic drag due to the location of the pinion in relation to the ring gear. I have one in my Camaro and have scattered it all over the track so it is not exempt from breakage either. Also the torqe arm mount involves mutiple brackets welded to the stamped steel rear housing, not casted into the differential center section itself..

60 is a bit heaver than the other two but it is by far the strongest. The pinion/ring relationship makes this rear have about the same parasitic loss as a 12 bolt does. Only other draw back is the need for a slightly shorter driveshaft due to the overall size of the housing. The 60 like the 12 bolt, is a completely aftermarket casting whish is designed to have a torque arm mount so there are no problems there either.

Remember EVERY one of these rears WILL break eventually, EVERYTHING BREAKS in racing/high performance, it is just a matter of how long it lasts in between service or repairs..So to repeat myself.. For the majority of people any one of these rears will be a capable unit. It just boils down to the pros and cons involved with each particular design.

impressive answer. you know ur stuff

[Ispooledurmom]

Does anyone have the weights of the rears cause this is gonna be a DD i dont want to be driving a tank

[NastyEllEssWon]

my car weighs like 3700 lbs with the 9''

[JSPERFORMANCE]

Does anyone have the weights of the rears cause this is gonna be a DD i dont want to be driving a tank

You will not "feel" the difference in weight either way..

You are obivously not going to be going out side of the capabilities of any of these rears. Like I said pick one GM, ford, or mopar they will all do the job for you it is up to you to decide what you see when you look under the car.