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

Borg Warner Rear Axle

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Old Aug 23, 2012 | 09:05 AM
  #1  
ig Mike's Avatar
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Borg Warner Rear Axle

Need help identifying rear axle. It is stamped Borg Warner and has disc brakes that are mounted opposite of one another. It also has a 3.70 or 3.73 gear ratio. I was told 87, but thinking it could be an 85 or 86? Any suggestions one what I may have?
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Old Aug 23, 2012 | 09:07 AM
  #2  
Twin_Turbo's Avatar
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Borg Warner Rear Axle

BW 9 bolt.
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Old Aug 23, 2012 | 09:08 AM
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87350IROC's Avatar
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From: Everett, WA
Car: 87' IROC
Engine: L98
Transmission: T56
Re: Borg Warner Rear Axle

Does it have 9 bolts on the cover? If so its a BW 9 bolt. Tons of info on here. Do a search.
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Old Aug 23, 2012 | 09:21 AM
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Twin_Turbo's Avatar
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25 Year Member
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From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: Borg Warner Rear Axle

9 bolts + rubber plug
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Old Aug 23, 2012 | 11:08 AM
  #5  
DJP87Z28's Avatar
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: Borg Warner Rear Axle

Pre 1989 BW 9-bolt rear with the Iron calipers & 10.5 rotors, 1989 had the PBR calipers & 11.655 dia rotors. Your guess should be correct for the year.
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Old Aug 23, 2012 | 02:34 PM
  #6  
ig Mike's Avatar
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Re: Borg Warner Rear Axle

Definitely a 9-bolt with rubber plug. It also has the metric brake lines which tells me it's 84 or later.
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