Factory rear wheel spacer?
09-13-2012, 11:18 AM
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Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Factory rear wheel spacer?
Is there any chance that that my 92 Z28 Convertible had these wheel spacers from the factory, or as part of the vert conversion?
Never seem before, on any of my other hard top/ t-top cars. Not sure if I should be tossing these aside. Yes I did confirm rear wheels on the rear
Never seem before, on any of my other hard top/ t-top cars. Not sure if I should be tossing these aside. Yes I did confirm rear wheels on the rear
09-13-2012, 12:15 PM
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09-13-2012, 12:33 PM
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Car: 80 SE/TTA;88 T/A GTA;86 T/A
Engine: 4.9L Turbo; LT1; empty
Transmission: TH350; T56; empty
Axle/Gears: 3:23 disk; 4:10 disk ; 3.42 disk
Re: Factory rear wheel spacer?
Came on my 92 RS with the 16s, haven't seen them on any of the 5 other cars i've had. thought they were a 91/92 thing.
09-13-2012, 12:43 PM
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Car: 1987 Black IROC-Z (SOLD)
Re: Factory rear wheel spacer?
GM added the .187 rear spacer to make up the difference between the Aluminum to Iron rear drum brakes. I had them on my 1987 car and it seems they were a hit and miss install on the assembly line. Some got them and others did not, but most got discarded over the years. Sold mine on E-Bay for $20.00 years ago.
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09-13-2012, 12:44 PM
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Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Re: Factory rear wheel spacer?
That makes sense... kinda. No other vehicles I have run into have a "washer" between the wheels and drums/rotors. Why would some 3rd gens need this not others?
My 91 did not come with them, but it had aluminum drums factory. Never seen any other vehicle with these.
My 91 did not come with them, but it had aluminum drums factory. Never seen any other vehicle with these.
09-13-2012, 12:47 PM
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Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Re: Factory rear wheel spacer?
GM added the .187 rear spacer to make up the difference between the Aluminum to Iron rear drum brakes. I had them on my 1987 car and it seems they were a hit and miss install on the assembly line. Some got them and others did not, but most got discarded over the years. Sold mine on E-Bay for $20.00 years ago.
Thanks guys!
09-14-2012, 07:40 AM
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Car: 1987 T/A WS6 T-Tops/92 RS
Engine: LB9/3.1
Transmission: 700R4/700R4
Axle/Gears: 2.73/3.23
Re: Factory rear wheel spacer?
My car does not have them, but it might have at some time. I have heard about them, but never seen them. I also though GM out a spacer on the rear with the 16" wheel's to help make of some of the offset differance since the front wheels are 16mm neg offset more that the rears?
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