ls1 brake conversion on 9-bolt rear
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Joined: Jun 2010
Posts: 4
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Car: 1939 Oldsmobile
Engine: 350 Olds
Transmission: Turbo 350
Axle/Gears: 1988 Camaro 9 bolt
ls1 brake conversion on 9-bolt rear
I am doing an LS1 conversion on my 9 bolt rear end. Will the axles seat properly with the GM LS1 backing plates ?
They are thicker than the stock plates.
They are thicker than the stock plates. 
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: ls1 brake conversion on 9-bolt rear
No they won't, you will have to make a spacer to makeup the difference.
Last edited by Dyno Don; Sep 28, 2012 at 12:32 PM.
Joined: Mar 2000
Posts: 5,703
Likes: 132
From: Orange, CA
Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: ls1 brake conversion on 9-bolt rear
Not that I know of, I made mine out schedule 40 PVC.
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Posts: 2,893
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From: Central Texas
Car: GTA
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: Aussie 9-bolt/3.27 posi
Re: ls1 brake conversion on 9-bolt rear
Looking at the pic....2.550" is the overall diameter & 0.30" is the width?
S judging by the pic...It is just a 0.30" wide slice of a 2.55" aluminum pipe & the wall thickness is irrelevant? With a piece cut out just wide enough to slip over the axle housing?
S judging by the pic...It is just a 0.30" wide slice of a 2.55" aluminum pipe & the wall thickness is irrelevant? With a piece cut out just wide enough to slip over the axle housing?
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