What rear end do i have?
Thread Starter
Junior Member
Joined: Mar 2001
Posts: 2
Likes: 0
From: kalamazoo, mi, us
What rear end do i have?
Could someone tell me what rearend comes in an '85 trans am, 305? What is the size and spline? Its a 3.23 now and im looking to go with a 3.73 posi..but dont know what to buy
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TGO Supporter
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
10 bolt 26 spline, might of been easier for you to look and be sure
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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM
Joined: Dec 1999
Posts: 3,544
Likes: 19
From: WI,USA
Car: 89 FORMULA 350, 91 Z28 Convertible
Engine: ls1, LB9
Transmission: t56, Auto
Axle/Gears: S60/ 3.73
Are you sure it is 3.23 not 3.27? the 3.23 is a 10 bolt ratio and the 3.27 is a 10 bolt set up.
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