What kind of rear do I have?
Thread Starter
Junior Member
Joined: Jan 2011
Posts: 5
Likes: 0
From: Long Island
Car: 1987 Fire Chicken
Engine: 305 ci
Transmission: 700R4
Axle/Gears: 10 Bolt Posi 3.73 gears
What kind of rear do I have?
Hey guys, when I bought my 87 firebird the kid selling told me it had a borg-warner rear. I find that hard to believe because of the drums on it. Its just a firebird with 305, qjet on top and 4spd automatic. Any ideas of what unit it is or how to tell?
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: What kind of rear do I have?
Count the bolts on the cover: 9 or 10.
JamesC
JamesC
Supreme Member
Joined: Sep 2008
Posts: 3,777
Likes: 0
Re: What kind of rear do I have?
Yea, it's not hard to tell. If it has 9 bolts in the cover it's the Borg Warner and if it has 10 bolts then it's the GM 7.5. The Borg Warner also has a rubber plug in the cover for adding oil.
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