4th gen rear end specs.
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Junior Member
Joined: Mar 2006
Posts: 90
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From: Michigan
Car: 1988 camaro SC
Engine: 355 four bolt
Transmission: th350
Axle/Gears: 3.73
4th gen rear end specs.
what are the 4th gen. rear end specs? and do you have to switch the master cylinder when swapping drums for disc brakes?
Thread Starter
Junior Member
Joined: Mar 2006
Posts: 90
Likes: 0
From: Michigan
Car: 1988 camaro SC
Engine: 355 four bolt
Transmission: th350
Axle/Gears: 3.73
i was wondering the splines, width of the comlpete rear end, all the gears available, which ones had posi, and anything else you think i'd need to know to swap them out and what to look for.
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From: check under the car
Car: White 25th Anniversary RS
Engine: lt1
Transmission: t56
Axle/Gears: 4:10
things to know... get a v8 one and its going to be 2 inches wider. bolts right up and you might need a prop valve if you dont have disc brakes already. gear specs will depend on what its out of.
Originally Posted by 92rs85berlintta
things to know... get a v8 one and its going to be 2 inches wider. bolts right up and you might need a prop valve if you dont have disc brakes already. gear specs will depend on what its out of.
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Joined: Sep 2002
Posts: 9,192
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
The only true way to know posi and gear ratios is to take the cover off, look for the posi, and count the teeth. I read the 1997 and later models were a tad shorter in length, but not sure. Only need to swap the proportioning valve to use the rear discs effeciently.
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From: check under the car
Car: White 25th Anniversary RS
Engine: lt1
Transmission: t56
Axle/Gears: 4:10
Originally Posted by Z28cross-fire
All 4th gen rears are the same length.
I meant to say just get a v8 4th gen rear from a v8 and it will be fine. However they are 2 inches wider than our stock thirdgen rears. They bolt in without any modification except maybe the brake lines and e-cables. Since torsens never need rebuilding it should be good to go!
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