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Shim/ no shim Rear LS1 brake retrofit

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Old 08-24-2010, 05:15 PM
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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?
Old 08-24-2010, 05:20 PM
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Re: Shim/ no shim Rear LS1 brake retrofit

i didnt have to. I believe the shim is for the lt1 (93-97) style brakes
Old 08-24-2010, 05:29 PM
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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

Last edited by JamesC; 08-24-2010 at 05:38 PM.
Old 08-24-2010, 09:29 PM
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Re: Shim/ no shim Rear LS1 brake retrofit

i had to on the drivers side but not pass side, youll know when you get them on
Old 08-25-2010, 11:10 AM
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Re: Shim/ no shim Rear LS1 brake retrofit

I did not need to.
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