4th Gen Posi Carrier..

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Oct 2, 2004 | 05:50 PM

prOject-IrOc

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From: Gilbert

Car: 1990 Iroc-Z

(quick quesiton) 4th Gen Posi Carrier..

...should swap right in to my 90 Iroc rear end...right?

28 spline..

Last edited by prOject-IrOc; Oct 2, 2004 at 06:10 PM.

Oct 2, 2004 | 06:53 PM

ljnowell

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Depends on what gears you have, I believe.

Oct 2, 2004 | 07:01 PM

prOject-IrOc

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From: Gilbert

Car: 1990 Iroc-Z

i will be puttin 3.73's in the carrier. my car has 3.42 posi now.

Oct 2, 2004 | 07:36 PM

ljnowell

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Well, as long as the posi unit is a 3-series carrier, it will work just fine.

Oct 3, 2004 | 08:51 AM

91TPI5.7

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From: Pahrump, Nv

Car: 1991 z28

Engine: l98

Transmission: 700r4

Just make sure that IROC doesnt have a 9 bolt. Its a totally diffrent animal then the 10 bolt. If your car is factory with the L98, then I am 99.9% sure you have a 9 bolt.

Oct 4, 2004 | 04:48 AM

MdFormula350

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From: Maryland; USA

9 bolts were during the 86 - 89 thirdgens, 90 - 92 were 10 bolts with 28 spline axles.

https://www.thirdgen.org/newdesign/tech/techdb.shtml

Oct 4, 2004 | 07:36 AM

prOject-IrOc

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From: Gilbert

Car: 1990 Iroc-Z

Quote:

Originally posted by MdFormula350
9 bolts were during the 86 - 89 thirdgens, 90 - 92 were 10 bolts with 28 spline axles.

https://www.thirdgen.org/newdesign/tech/techdb.shtml

thank you very much. so the 4th gen posi unit should bolt right in...correct?

4th Gen Posi Carrier..

4th Gen Posi Carrier..

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