Transmissions and Drivetrain Need help with your trans? Problems with your axle?

ls1 rear end

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Old May 22, 2005 | 03:26 PM
  #1  
Cam91z's Avatar
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From: MO
Car: 91 Z28
Engine: 305TPI
Transmission: 5 speed
ls1 rear end

I can get a ls1 rear end with disc for 100. Should i get it? Itll bolt right up right or do i need to change anything? Will the third gen wheels stick out far?
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Old May 22, 2005 | 04:41 PM
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ede's Avatar
ede
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From: Jackson County
might have to change porpotioning valve, but it'll be direct swap. you'll have about 1.5" per side more length and you'll have a 7.5/7.62 ten bolt, most likely like you already have.
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Old May 25, 2005 | 06:14 PM
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From: MO
Car: 91 Z28
Engine: 305TPI
Transmission: 5 speed
can i take the ring and pinion outa my rearend and put in the ls1?
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Old May 25, 2005 | 09:07 PM
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From: Cincinnati, OH
Car: '90 RS
Engine: 377 LSX
Transmission: Magnum T56
Originally posted by Cam91z
can i take the ring and pinion outa my rearend and put in the ls1?
If it is from a 28 spline 10 bolt then yes.
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Old May 26, 2005 | 07:28 AM
  #5  
flyitlikustolit's Avatar
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From: Savannah GA
Car: 1982 Trans Am
Engine: 383 chevy
Transmission: T-5
Axle/Gears: 4th gen 10-bolt, posi, 3.42 ratio
your car is a 91 z-28, so yes. just replace the crush sleeve and reset your pinion depth and backlash.
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Old May 26, 2005 | 08:59 PM
  #6  
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From: MO
Car: 91 Z28
Engine: 305TPI
Transmission: 5 speed
it has the ebrake cables can i use them or no?
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Old May 27, 2005 | 07:46 PM
  #7  
flyitlikustolit's Avatar
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From: Savannah GA
Car: 1982 Trans Am
Engine: 383 chevy
Transmission: T-5
Axle/Gears: 4th gen 10-bolt, posi, 3.42 ratio
if this came out of an ls1 car, i dunno. haven't seen them to be able to tell you. if it's out of an LT one car, you use your old ones, but not the new ones, because the ends are different.
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