C6 wheels on an 87
Melting Slicks
Joined: Mar 2012
Posts: 2,800
Likes: 456
From: USA
Depends on the C6 wheels backspacing. I put C5 wheels on my 84 which is the same as your 87. I used hub centric adapters. I personally would not use spacers.
Here is a Chart that will give you the size adapters you need. https://www.corvettecentral.com/wheel-offset
Here is a Chart that will give you the size adapters you need. https://www.corvettecentral.com/wheel-offset
Drifting
Joined: Nov 2015
Posts: 1,714
Likes: 331
Finalist 2020 C4 of the Year - Unmodified
Most the 9.5" C6 rims (it's either front or rear, I forget) have +40mm offset. '87 stock 9.5" rim has +38 mm, IIRC.
Can either go with the +40mm or put a small +2mm plate in.
Starting to think maybe stock is +36mm, since I got some +4mm plates...or was it +2mm plates...stupid memory!!
Can either go with the +40mm or put a small +2mm plate in.
Starting to think maybe stock is +36mm, since I got some +4mm plates...or was it +2mm plates...stupid memory!!
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
Thin ones on the front, I can't remember how thick I had to go before they stopped rubbing, no more than 1/4". The C6Z wheels are also 18x10.5 in the front and 19x12 in the rear.
I think I had to use like a 1 or 1.5" for the rear.
I think I had to use like a 1 or 1.5" for the rear.
Melting Slicks
Joined: Mar 2001
Posts: 2,150
Likes: 304
From: Timra, Sweden
C4 1984-1987
16"x9.5" 38mm ( 255/50-16 )
C4 ZR1
17"x11" 36mm ( 315/35-17 )
C6 2005-2013 ( Z06 )
18"x9.5" 40mm ( 275/35-18 )
19"x12" 59mm ( 325/30-19 )
2 mm is nothing so C6 Z06 fronts should fit front and rear on the 84-87 C4.
The rears are probably too wide.
The C4 ZR1 just fit. The Z06 rears would probably need a 35 mm adapter to clear on the inside and then they will stick out one inch more than the ZR1 rears.
16"x9.5" 38mm ( 255/50-16 )
C4 ZR1
17"x11" 36mm ( 315/35-17 )
C6 2005-2013 ( Z06 )
18"x9.5" 40mm ( 275/35-18 )
19"x12" 59mm ( 325/30-19 )
2 mm is nothing so C6 Z06 fronts should fit front and rear on the 84-87 C4.
The rears are probably too wide.
The C4 ZR1 just fit. The Z06 rears would probably need a 35 mm adapter to clear on the inside and then they will stick out one inch more than the ZR1 rears.
Last edited by JoBy; May 19, 2020 at 01:43 AM.
Melting Slicks
Joined: Mar 2001
Posts: 2,150
Likes: 304
From: Timra, Sweden
From the picture it seems like the rear stick out quite a lot from where the door used to be. Do you have early or late suspension? ( 1984-1987 or 1988-1996 )
Last edited by JoBy; May 19, 2020 at 06:51 AM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Aug 2015
Posts: 6,119
Likes: 1,994
From: St. Charles MO
There were a number of different C6 wheels, with different widths and offsets. Instead of us guessing which ones the OP has and taking shots in the dark about spacers, let's have him tell us exactly which wheels he has or is thinking of, and then we can tell him exactly. For 84-87 C4s, stock 16x8.5 wheels had 32mm offset and stock 16x9.5 had 36mm 38mm offset. Some examples of C6 wheels:
- 18x8.5 et 56 fronts: will need 1" spacers.
- 19x10 et79 rears: will need around 1.7" spacers.
- 18x9.5 et40 (Z06) fronts: could probably get away with no spacer, but they will be set in a teeny bit and you may prefer 1/8" spacer.
- 19x12 et59 (Z06) rears: won't fit under stock fenders, will need about 0.82" spacers to clear on the inside.
Last edited by MatthewMiller; May 19, 2020 at 09:33 PM.
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
Is that on the "Kart" thing? You only have to space out enough to clear whatever. With fenders you have more to consider
From the picture it seems like the rear stick out quite a lot from where the door used to be. Do you have early or late suspension? ( 1984-1987 or 1988-1996 )
From the picture it seems like the rear stick out quite a lot from where the door used to be. Do you have early or late suspension? ( 1984-1987 or 1988-1996 )
I didn't get any miles on the C6 wheels, though. I just fit them, bought spacers, and fit them again. The tires that were on them when I bought them were completely trashed and weren't capable of being driven on.
The wheels didn't go back on with the new tires until after the transformation.
The rear spacers that are on them now are twice as thick as the ones I originally had on it.
Le Mans Master
Joined: Aug 2015
Posts: 6,119
Likes: 1,994
From: St. Charles MO
I don't think so. I'm pretty sure those are from 2006-2008 in sizes:
- 18x8.5 et 56 fronts: will need 1" spacers.
- 19x10 et79 rears: will need around 1.7" spacers.
Le Mans Master
Joined: Aug 2015
Posts: 6,119
Likes: 1,994
From: St. Charles MO
There you go.
- So to get the exact fender placement as stock, the front will want 24mm spacers (56mm-32mm). 1" (25.4mm) is completely fine, or you have wiggle room to space them a little wider with thicker spacers if you want (you can set them in a little, too, but that looks a little odd).
- For the rear, the stock 9.5 had 38mm offset (I was off by 2mm previously, and I'll go back and correct that post). To center your 10" rears in the same location as stock 9.5s, you'll need 41mm spacers (1.61"). With that, you're getting pretty close on the inside, but you could push them outside a little more if you wanted, so perhaps 1.75" (44mm) would be easier to find and they'd work well.
Thread Starter
Safety Car
Joined: Sep 2009
Posts: 4,964
Likes: 28
From: Pittsburgh PA
There you go.
- So to get the exact fender placement as stock, the front will want 24mm spacers (56mm-32mm). 1" (25.4mm) is completely fine, or you have wiggle room to space them a little wider with thicker spacers if you want (you can set them in a little, too, but that looks a little odd).
- For the rear, the stock 9.5 had 38mm offset (I was off by 2mm previously, and I'll go back and correct that post). To center your 10" rears in the same location as stock 9.5s, you'll need 41mm spacers (1.61"). With that, you're getting pretty close on the inside, but you could push them outside a little more if you wanted, so perhaps 1.75" (44mm) would be easier to find and they'd work well.
Oil Producer
Joined: Apr 2014
Posts: 9,377
Likes: 2,737
this is trhe guide i used. it was originally a post here on cf. not sure how it ended up where it is now.
https://www.diyauto.com/manufacturer...-corvettedan22
https://www.diyauto.com/manufacturer...-corvettedan22