Wheel dilemma
I've been told that the bolt pattern and offset for 88 thru 04 Corvettes are the same, the rims are interchangable as long as it's not a real C5-ZO6.
I want to put 17X9.5's on the front and 18X9.5's on the rear........Here's what I run into.
For a 18X9.5" wheel the bolt pattern is 5x4.75" or 5x120.65mm, offsets are: +56mm with a 6.95" back spacing and a center bore of : 70.7mm
if the rim width is under 10". Same for a 17X9.5" wheel, if the rim width is under 10"
When I go to look at wheels "anywhere" I run into "Oh no, those wont fit, you have to buy the $400 each ones or they wont fit right, you cant use the $200 ones you were looking at........or I need some such of an adapter or some thing else. Zip Corvette has a set I want listed for C5's (17X9.5's and 18X9.5's) fits non ZO6 cars, but not listed for C4's. I call ZIP to ask "will the fit a 96 C4" and I get "I dunno"? Duh ! I'm starting to feel like the Aflac duck here.........any ideas are more than welcome.
I've been told that the bolt pattern and offset for 88 thru 04 Corvettes are the same, the rims are interchangable as long as it's not a real C5-ZO6.
I want to put 17X9.5's on the front and 18X9.5's on the rear........Here's what I run into.
For a 18X9.5" wheel the bolt pattern is 5x4.75" or 5x120.65mm, offsets are: +56mm with a 6.95" back spacing and a center bore of : 70.7mm
if the rim width is under 10". Same for a 17X9.5" wheel, if the rim width is under 10"
When I go to look at wheels "anywhere" I run into "Oh no, those wont fit, you have to buy the $400 each ones or they wont fit right, you cant use the $200 ones you were looking at........or I need some such of an adapter or some thing else. Zip Corvette has a set I want listed for C5's (17X9.5's and 18X9.5's) fits non ZO6 cars, but not listed for C4's. I call ZIP to ask "will the fit a 96 C4" and I get "I dunno"? Duh ! I'm starting to feel like the Aflac duck here.........any ideas are more than welcome.
A quick question! Why are you so interested in runnning a 17/18 combination both at 9 1/2" width? If you're dead set on the 9 1/2" width I don't understand why you wouldn't want to do a 4 of one or the other!


17x8.5 and 18x9.5 were the standard OEM C5 Corvette wheel sizes which fit perfectly on the 88-96 C4 Vettes. The 56mm offset is the standard OEM C4 Corvette offset for the 9.5" wheel width which came standard front and rear on the 88-92 Vette's.
Order the wheels and you'll be Happy!
Last edited by GKK; Aug 23, 2009 at 01:11 PM.
I've been told that the bolt pattern and offset for 88 thru 04 Corvettes are the same, the rims are interchangable as long as it's not a real C5-ZO6.
I want to put 17X9.5's on the front and 18X9.5's on the rear........Here's what I run into.
For a 18X9.5" wheel the bolt pattern is 5x4.75" or 5x120.65mm, offsets are: +56mm with a 6.95" back spacing and a center bore of : 70.7mm
if the rim width is under 10". Same for a 17X9.5" wheel, if the rim width is under 10"
When I go to look at wheels "anywhere" I run into "Oh no, those wont fit, you have to buy the $400 each ones or they wont fit right, you cant use the $200 ones you were looking at........or I need some such of an adapter or some thing else. Zip Corvette has a set I want listed for C5's (17X9.5's and 18X9.5's) fits non ZO6 cars, but not listed for C4's. I call ZIP to ask "will the fit a 96 C4" and I get "I dunno"? Duh ! I'm starting to feel like the Aflac duck here.........any ideas are more than welcome.
The Best of Corvette for Corvette Enthusiasts
17x8.5 and 18x9.5 were the standard OEM C5 Corvette wheel sizes which fit perfectly on the 88-96 C4 Vettes. The 56mm offset is the standard OEM C4 Corvette offset which fit perfect with the 9.5" wheel width which came standard on the 89-91 Vette's.
Order the wheels and you'll be Happy!
Thank you
Thank you
That's all I wanted to know
Thank you
That's all I wanted to know
17x8.5 and 18x9.5 were the standard OEM C5 Corvette wheel sizes which fit perfectly on the 88-96 C4 Vettes. The 56mm offset is the standard OEM C4 Corvette offset which fit perfect with the 9.5" wheel width which came standard on the 88-92 Vette's.
Order the wheels and you'll be Happy!
FIT yes! HAPPY? MAYBE NOT!!
Notice I mentioned wheel/tire "combination" - the FINAL FIT appearannce is the wheel/tire "fitment" in the wheelhouse.
There's considerable thought required to buy for "fitment"!!
My 91 Vette has reproduction 17x9.5 C5 ZO6 wheels with a 54mm offset which fit Perfectly front and rear. I wanted to buy the OEM ZO6 wheels but, the Tire choices and cost for the rear 18x10.5 wheel was Very expensive!
Last edited by GKK; Aug 23, 2009 at 01:08 PM.












my car is a 96 and has rims off a 98. they are gm wheels. fit fine no issues.
