wheel offset
Thread Starter
Burning Brakes
Joined: Nov 2008
Posts: 1,159
Likes: 31
From: Orange Park Florida
wheel offset
Hello C4 experts, can anyone tell me if a 17x11 50mm offset wheel work on my stock 1987 C4. I am assuming I would have to run a spacer to keep it from rubbing somewhere. Does anyone have any experience with this?? Thanks for any info, gary
Race Director
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From: Kingman AZ
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Cruise-In VIII
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You can Google the offset for your 87 and use the calculator from sites such as Corvette Central, Tire Rack etc. to see which different sizes fit.
Last edited by corvetteronw; Jul 31, 2016 at 02:45 PM.
Burning Brakes
Joined: Feb 2013
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From: norway
Thread Starter
Burning Brakes
Joined: Nov 2008
Posts: 1,159
Likes: 31
From: Orange Park Florida
38mm
Hey, and thanks for the info.. my 1987 c4 has the z51 option so the stock wheels would have had a 38mm offset. PO had changed them to the ZR-1 A mold type wheels which are 17 inch. I am hoping that I can get these 50mm rims to fit seeing there is only 12mm difference in depth. Thanks, gary
Team Owner
Joined: Dec 1999
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Hey, and thanks for the info.. my 1987 c4 has the z51 option so the stock wheels would have had a 38mm offset. PO had changed them to the ZR-1 A mold type wheels which are 17 inch. I am hoping that I can get these 50mm rims to fit seeing there is only 12mm difference in depth. Thanks, gary
As WVZR-1 pointed out, the original 17x11 rear wheels from a C4 ZR-1 have a 36mm offset and they should bolt on. But it's a good idea to check the fit to insure there will be no interference from things like the parking brake cable or the brake line to the caliper. The 315/35 tire should be mounted on the wheel so that you can check for any interference with the frame or the wheel well.
The GM 17x11 5-spoke wheel with a 50mm offset was used on the '96 Grand Sport coupe.
