Shim/ no shim Rear LS1 brake retrofit
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Joined: Mar 2003
Posts: 1,149
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From: Gladstone, Missouri
Car: 91 Camaro RS
Engine: 5.0L TBI (ebl inside)
Transmission: T-5
Axle/Gears: 3.42 lsd 10 bolt
Shim/ no shim Rear LS1 brake retrofit
For some reason, I haven't found the decisive answer. When adding ls1 brakes on a drum rear axle, do I need to shim the backing plate?
Joined: Aug 2006
Posts: 12,812
Likes: 109
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Shim/ no shim Rear LS1 brake retrofit
i didnt have to. I believe the shim is for the lt1 (93-97) style brakes
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: Shim/ no shim Rear LS1 brake retrofit
89-92 10-bolts cars with PBR's had shims if needed--I've read that the 89 9-bolt didn't require them.
JamesC
JamesC
Last edited by JamesC; Aug 24, 2010 at 05:38 PM.
Member
Joined: Mar 2008
Posts: 375
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From: Lakewood, California
Car: 1992 Camaro RS 25th Anniversary
Engine: Stock 305 TBI, LT1 soon.
Transmission: V6 NWC T5 by choice
Axle/Gears: Zexel Torsen LSD with 3.23's
Re: Shim/ no shim Rear LS1 brake retrofit
I did not need to.
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