Stock rear wheel GM Spacer drum or disc?
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From: Rhinelander, WI
Car: 89 Formula
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt 3.27
Stock rear wheel GM Spacer drum or disc?
Running stock IROC 16x8 rims. Is the GM factory spacer required for use on the rear drum or disc brakes? Or is it required for both? Seems like it should be used on drum only but don't know.
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Re: Stock rear wheel GM Spacer drum or disc?
Makes no difference if you use that .187 thick spacer or not. After 1987 it was installed by the Factory in a hit or miss fashion. My opinion, it was used to cover up a error on the assembly drawings with the switch from aluminum to iron drums.
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