gears.....

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Jun 19, 2006 | 07:18 PM

gmtekk

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gears.....

any one know wat gears come in an 89 iroc 5.0tpi.....its a 10 bolt...both tires leave a nice even burn out...but i was thinking of upgrading to may be 373s

Jun 19, 2006 | 09:29 PM

1981LT1

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From: San Antonio

Car: 1981 Camaro; 1986 Z28

Engine: LT1; LT1

Transmission: 6 speed; 6 speed

Axle/Gears: 3.73; 3.42

Wow, how vague can this answer be. You need to visually inspect the ring and pinion to make sure of the ratio. Even with the RPO codes, you never know if they have already been replaces.

Jun 20, 2006 | 03:29 PM

redliterunner

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Joined: Mar 2004

Posts: 430

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From: Huntsville Alabama

Car: 89 IROC convert.

Engine: tpi 305

Transmission: T-5

Axle/Gears: 3.42 10 bolt

3.73s....too deep for stock or slightly lukewarm motor. 3.4X would make you happier. There are a number of gearsets that could be in your car. You'll have to read the numbers stamped on the ring gear to know for sure.