1989 Iroc 305 TPI 5 Speed: 9 or 10 bolt rear?
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Joined: Jul 2003
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From: Lexington, KY
1989 Iroc 305 TPI 5 Speed: 9 or 10 bolt rear?
Car is a factory TPI car with 140 mph speedo but has 15 inch wheels. Not sure if the wheels are factory. Would it have come from the factory with a 9 or 10 bolt rear?
Joined: Aug 2006
Posts: 1,376
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From: Northern California - Bay Area
Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
Re: 1989 Iroc 305 TPI 5 Speed: 9 or 10 bolt rear?
Check and see if it's a G92 option car. The RPO codes should be on the inside of the glove box. If it's a factory LB9/T-5/G92 car should have a 9 bolt rear.
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