When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I have a wheel question. If I want to put wheels off a 93 on an 87 what size spacer do I need to put on before installing the wheels? Thanks in advance!
1987 base models had 16x8.5" wheels with +32mm offset, while Z51s had 16x9.5s with +38mm offset.
1993 base models had 17x8.5 fronts and 17x9.5 rears, both with +50mm offset. Z07s had 17x9.5s on all 4 corners, same +50mm offset.
So my math tells me that 12mm thick spacer will give the proper off set for the 93 wheels. Should I go with a bolt through with longer studs, or should I go with bolt on spacers?
The 12mm spacer (1/2") matches the offset difference between the 9.5" '87 wheels and the '93 wheels.
However, the 8.5" '87 wheels could use a little more (about 3/4").
I prefer the adapters to just spacers. In practice you will need to check how far the studs stick through the adapter to make sure the studs don't contact the wheels.
You also have some flexibility in spacer/adapter size. I have seen the later wheels used on the earlier cars without a spacer/adapter. I have also used 1 1/4" adpaters with the staggered set of '93 wheels.
In my case, I had some 1 1/4" adapters from another project and used them on my '85 with '93 wheels. They fit fine, however, I had the 8.5" fronts and I think if I had the 9.5" fronts it would have been too wide an adapter.
My '85 with '93 (actually '94) wheels with 1 1/4" adapters on all four wheels.
I didn't look at the specs listed above, but WVZR-1 is correct in the offsets.
I am listing some of the Corvette wheels below with the offsets for your reference.
1987 base models had 16x8.5" wheels with +32mm offset, while Z51s had 16x9.5s with +38mm offset.
1993 base models had 17x8.5 fronts and 17x9.5 rears, both with +50mm offset. Z07s had 17x9.5s on all 4 corners, same +50mm offset.
Your specifications aren't correct for the '93 so the OP cant use your information at all!!!!
'93 wheels both 8.5 & 9.5 are @56mm
Originally Posted by 87bob
So my math tells me that 12mm thick spacer will give the proper off set for the 93 wheels. Should I go with a bolt through with longer studs, or should I go with bolt on spacers?
You can't use his information BUT you can rely on anything @QCVette mentions regarding spacers/adapters for a C4. He at one time or another has mixed/mounted nearly all of them!
Hi guys In digging through the parts I have up in the attic. I found a set of bolt on spacers they are one inch thick I think they will work on the rears ok. Has anyone tried to use ones that thick on the front?.
