16 or 17" wheels.
Burning Brakes
Joined: Aug 2007
Posts: 1,173
Likes: 1
From: Liberty Missouri
I’m not sure what you are asking here. What will work on a C3?
5 on 4.75 bolt pattern
8” wide wheel
4” or 4.5” back spacing will work
Not sure on offset
16, 17 will fit with no problems
Can you be a little bit more specific so we can give you better answers?
5 on 4.75 bolt pattern
8” wide wheel
4” or 4.5” back spacing will work
Not sure on offset
16, 17 will fit with no problems
Can you be a little bit more specific so we can give you better answers?
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
17x9 wheel with 4" backspace fits perfectly on the rear with no changes to the trailing arm. Clearance is fine with the sway bar too. Everything that could possibly make contact with the tire/wheel is INSIDE the wheel diameter.
Race Director
Joined: Jan 2007
Posts: 14,948
Likes: 3,351
From: NYC NY
There has been a lot of help already but IF you have a lot of time search this forum using "17s" and there is LOTS of reading. 
Also as stated above if you're trying to decide between 16s or 17s there are a lot more tire choises in 17s.
Also as stated above if you're trying to decide between 16s or 17s there are a lot more tire choises in 17s.
Burning Brakes
Joined: Oct 2002
Posts: 914
Likes: 14
From: Aberdeen, Scotland
16"s here and ....
I fitted 16" TT's and they look real good. They have that "almost" stock look and keep a similiar stance on the car. However and this is a BIG HOWEVER ... I can't find the size of tire that I really need/want. I run a 235/50 up front and a 255/50 out back. What I really need to maintain the height is a 255/55 ... well the only tire in that size is a SUV tire
I have a set of Dunlops but could not get the better D8000's up front. The 8000's out back seem to get a bit greasy and slippery too.. But they are far better than that BGR radial junk that I ran on my 15's!
Any tire suggestions are welcome. I might upgrade to 17"s just for better rubber! But IMHO the 16"s just look right.
Funny I used to run ex-race D208 race comp tires on my Kawasaki ZRX 1100 that had been hot rodded and when too hot the Dunlops got greasy ... same as the car ... I now run another tire on my bikes!
carbster
I have a set of Dunlops but could not get the better D8000's up front. The 8000's out back seem to get a bit greasy and slippery too..
But they are far better than that BGR radial junk that I ran on my 15's! Any tire suggestions are welcome. I might upgrade to 17"s just for better rubber! But IMHO the 16"s just look right.
Funny I used to run ex-race D208 race comp tires on my Kawasaki ZRX 1100 that had been hot rodded and when too hot the Dunlops got greasy ... same as the car ... I now run another tire on my bikes!
carbster
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Pro
Joined: Nov 2000
Posts: 582
Likes: 1
From: Madison Wisconsin
Racer
Joined: Mar 2005
Posts: 294
Likes: 1
From: Racine Wisconsin
I am going through a similar analysis. I went to a car show and saw two 1970 vettes with 16" TTII's. They looked great. I checked the Tire Rack site and found a complete package with 255/50/16 BFG g-sports was $1,400. As stated by other CF members, that was the only option other than Hoosier racing tires or SUV tires. The diameter for that combo, 26", is the same as the more popular combo: 255/45/17 and 17x8 TTII's. A typical 17" package from Tire Rack with better rubber is around $2,100. I prefer the look of the 15" or 16" wheel, but how long will tires of any performance capability be available.
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
I went '92 vette rims some 15 years ago, it's still cheeper than going with larger rims, tire prices ZOOM for anything larger, but what with availability....I dunno...
Pro
Joined: Oct 2007
Posts: 587
Likes: 0
From: Overland Park Kansas
This is why I went with 17x8.5 and 18x9.5 tires on my '79. It is rediculiously hard to find good tires for a decent price on the smaller sizes. I think I run 255/45 on front and 275/40 on back and the car looks sweet imo.