I have looked for, and can't seem to find answers, hoping someone can help. I want a posi for my car, (02, V6), but I am not sure as the rear end. is it a 7.5" w/ 28 spline axles? what kind of posi is it? Gov-lok style? what vehicles would carry a rearend that i could use?

 

It is indeed a 7.5" but I don't remember if they're 28 or 30 spline axles. I want to say 28 but I'm not 100% sure.

The units are either a Auburn or Torsen. Obviously you know some stuff about rear ends so you know Auburn units are prone to problems. The Torsen units however can take a lot more abuse. You can use either rear but I would thoroughly advice a Torsen unit from a 99-02 SS/Z28. Try to get one with 3.42s installed already if you can.

You can use any rear from a 93-02 Camaro. The V6s normally carry open differentials unless they're Y87 equipped cars which came with a limited slip with 3.42s. All of the V8 cars carry limited slip differentials.

Not sure on the Gov-Lock since I've never owned a truck with one in it.

Just grab a differential from a 93-02 V8 car and you'll have it easy

 

@ evilkal- thanks for the answer, that's what i was looking for. i basically wanted to know if i could use a v8 car's diff. i thought they had a 8.5" ring gear though. either way, i am going to broaden my search. if i could get my hands on a set of 3.73's i would prefer that

 

^^ yeah as evilkal said just get a v8 rear. I'd second the think about torsen vs auburn, but i prefere the lock out of the auburn verses the torsen

 

You will have 28 spline axle shafts. Installing a LIMITED SLIP (to you posi) is a big buck item and NOT for DIY type of job. Replacing the entire rear would be the least expenvive option and any rear from 1993/2002 Z28 (they all have LS) will fit.

picture of standard LS carrier.

 

i thought gm quit using the 28 spline shaft and switched to the 30 on the 4th gen. if u have traction control u will want a traction control rearend. 93 to 02 have the same dimentions but some are abs (3 sensors one on rear)and some are traction control (4 sensors two on rear).

 

[QUOTE=craby;411725]i thought gm quit using the 28 spline shaft and switched to the 30 on the 4th gen.

You are incorrect.....Axle shafts were changed from 26 to 28 splines in 1989/90 and continued to be 28 splines on all 4th gen 10-bolt (V6 & v8) to the end of the model run in 2002.

 

ok thanks. maybe i was thinking of the transmission. still not awake. lol.

 

@blackz87, i think it would be much easier to swap the carrier as opposed to the whole rearend. i have done my share of rearends before, so setting it up is not an issue. as i can get my hands on a rearend for under $100, that is the way to go for me. the chances of me finding a complete axle for a reasonable price around here is very slim. anyways, have to hunt and see what i can find.