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

1988 iroc?

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Old

Feb 15, 2008 | 08:18 PM

#1

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From: anderson ,sc

Car: 89 formula/00 z28

Engine: carbed 350/ls1

Transmission: 700r4/ a4

Axle/Gears: 3.23 posi/ 3.73 posi

1988 iroc?

did all 1988 l98 iroc come with posi rearend? and with drum brakes?

Old

Feb 15, 2008 | 08:31 PM

#2

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Posts: 391

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From: NC johnston co

Car: 1988 IROC-Z

Engine: 350 TPI

Transmission: 700r4

Axle/Gears: 2.77 posi stock

Re: 1988 iroc?

nope they can be either a limited slip or a full posi and both iroc can come with disk or drum..

Old

Feb 15, 2008 | 08:35 PM

#3

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Senior Member

iTrader: (2)

Joined: Feb 2007

Posts: 805

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From: anderson ,sc

Car: 89 formula/00 z28

Engine: carbed 350/ls1

Transmission: 700r4/ a4

Axle/Gears: 3.23 posi/ 3.73 posi

Re: 1988 iroc?

Quote:

Originally Posted by alpine247

nope they can be either a limited slip or a full posi and both iroc can come with disk or drum..

did any come with one wheel peel>?

Old

Feb 15, 2008 | 08:44 PM

#4

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Re: 1988 iroc?

My RPO code says G80 2.73 AXLE POSITRACTION, LIMITED SLIP
lol which one does it have? For some reason its a one legger though. so either someone swapped it out or maybe the posi unit is bad?

Old

Feb 15, 2008 | 09:17 PM

#5

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Joined: Oct 2005

Posts: 593

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From: Brooklyn, NY

Car: 1983 Recaro T/A

Engine: L69

Transmission: MM5

Axle/Gears: 3:73

Re: 1988 iroc?

Quote:

Originally Posted by alpine247

nope they can be either a limited slip or a full posi and both iroc can come with disk or drum..

You do know that a Limited Slip and a Posi are the same, right? Posi - short for Positive Traction, was GM's name for a Limited Slip Rear End.

The one legger is called an Open Differential, or an Open Carrier.

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