New wheels old corvette
Thread Starter
Instructor
Joined: Feb 2009
Posts: 107
Likes: 0
From: Pickens SC
New wheels old corvette
i am looking at putting the new c6 corvette wheels on my C3 77 corvette. will this work or will the wheels not work. if anyone can help that would be great thinks.
Drifting
Joined: Jun 2007
Posts: 1,404
Likes: 1
From: Ansonia/NYC CT
You have to measure the back spacing. I know for the C5 wheels I am running on my 76, it required 3 inch wheel adapters on the rear, and 2.5 inch on the front.
If I'm not mistaken, C6 wheels are not only wider, but have less backspacing as well.
If I'm not mistaken, C6 wheels are not only wider, but have less backspacing as well.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Used to have '92 vette wheels on my '72, but went to '89 wheels instead, same size.....they all take the 2.5" VBP wheel adapters, NOT SPACERS....it takes ten lugnuts to get to the rotor with these adapters.....
I would suppose you need to measure your back spacing on the stock wheels, and the C5 wheels, and you want the same wheel centerline, to keep bearing/suspension loading/wear down to stock design limits....
so the first point of problem is the Ebrake bracket on the t-arms...moved to top or behind rotor, that gets you an extra 3/4 inch to the inside which puts the tire about 1/4 inch off the t-arm and about the same off any stockish sway bar setup I know of....now you can eliminate the bar, and go to offset arms, and get wider in there, but you also need concerned over the fenders......
from what I hear 10" of rim width as about all you can go in the rear...without going crazy....
I would suppose you need to measure your back spacing on the stock wheels, and the C5 wheels, and you want the same wheel centerline, to keep bearing/suspension loading/wear down to stock design limits....
so the first point of problem is the Ebrake bracket on the t-arms...moved to top or behind rotor, that gets you an extra 3/4 inch to the inside which puts the tire about 1/4 inch off the t-arm and about the same off any stockish sway bar setup I know of....now you can eliminate the bar, and go to offset arms, and get wider in there, but you also need concerned over the fenders......
from what I hear 10" of rim width as about all you can go in the rear...without going crazy....
Race Director
Joined: Feb 1999
Posts: 16,978
Likes: 7
From: In Dreams There Is Truth Ohio
Pro
Joined: Mar 2007
Posts: 738
Likes: 9
From: Fallbrook CA
I have them on my '76. I used 2.5" front and rear. You will need offset TA's also. The clearence on the rears is tight, I may add an additional 1/8" depending on how they sit after alignment. Also, I was not happy about how the adaptors looked. You could see the edges of the holes near the rim. I machined some rings into mine to make the transition look smooth. My adaptors are currently getting anodized but I can post a pic when I get them back. Also, if you go with C6 rims, upgrade the front brakes. I have C6 brakes. Wilwood is another option....gp
