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

rear end question...

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Old 04-13-2007, 09:11 AM
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Car: camaro iroc-z 89
Engine: 383 HSR SC MegaSquirt
Transmission: tko 600
Axle/Gears: 9 Inch 3.75
rear end question...

hii have a 89 iroc with a borgwarner rear with a 9bolts "28 spline axel " and i whant to know if i can put a 10bolts torsen posi unit from a 98-2002 t/a or camaro to replace my carrier then i can put a 3.73 gear on it thanks all good day
Old 04-13-2007, 10:30 AM
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Car: 1992 RS
Engine: 3.1
Transmission: 5 spd
Re: rear end question...

A 10 Bolt carrier (7.6") from a 1990-2002 axle will not fit in a 9 bolt Borg Warner axle. The BW would need to be swap out with a 1990-1992 28 spline GM 10 bolt.

This link is about brakes, but midway done, there is more info about the 9 bolt BW and 10 bolt GM axles.

https://www.thirdgen.org/forums/brak...ghlight=torsen

Hope this helps.
Old 04-13-2007, 12:13 PM
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Re: rear end question...

9-bolt & 10-bolt rear axle parts ane NOT INTERCHANGEABLE.....I say again NOTHING
Old 04-13-2007, 08:44 PM
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Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: rear end question...

The only thing similar between a 10 bolt and a 9 bolt is the mounting hardware how they attach to the car. You might as well be trying to install a 28 spline carrier from a Ford 9". It just won't fit.
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