any suggestion on what is widest 14 or 15" tire that will fit on rear stock supension 57 belair,
using 8" rims, or if can use a 10" rims
just don't want to try and buy,
any suggestion on what is widest 14 or 15" tire that will fit on rear stock supension 57 belair,
using 8" rims, or if can use a 10" rims
just don't want to try and buy,
A 275 tire on a wheel with the correct backspacing will barely fit, there is no room for error.
Chevynut did a spreadsheet years ago on wheel and tire fit and clearance. It is still on the internet somewhere.
Thanks, i'll try and look it up, so 295-50-15 are out.
56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension
Other vehicles:
56 Chevy 2-door BelAir sedan
56 Chevy 210 4-door sedan
57 Chevy 210 4-door sedan
1962 327/340HP Corvette
1961 Willys CJ3B Jeep
2001 Porsche Boxster S
2003 Chevy Silverado 2500 HD Duramax
2019 GMC Sierra Denali Duramax
I don't see how the tire being a drag radial makes a bit of difference, at least the ones I've seen.
A 275 tire will fit on a stock 57 with no problem. I think that also applies to 55-56.
This assumes that the body is on the frame symmetrically, and the body is stock and undamaged.
But it is a very tight fit. Far better to have the springs moved or even a mini-tub, as well as a slightly narrower than stock axle. Just makes things easier and more forgiving.
Last edited by Rick_L; 08-31-2015 at 08:47 AM.
The sidewall bulge is where the 275mm is measured. I'm guessing your offset isn't optimal for a 275 tire and perhaps the street tire you had wasn't truly a 275 width. Tires do vary somewhat. On a stock rearend zero offset or a very slightly positive offset works best.
The fenderwell lips on these cars are typically 71.5-72" wide and the springs are 48" wide outside. That makes the center of the wheel tubs about 59.75-60" across and the tubs about 11.75-12" wide each if the body is centered, accounting for the springs. A true 275 tire would be 10.8" wide at the bulge leaving 1"-1.25" of space to work with. You could go as close as 1/4" to the spring, imo, with no issues. That would put the center of the tires at 59.3" requiring an offset of a little over +1/4" and would give you at least 3/4" to the fenderwell.
56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension
Other vehicles:
56 Chevy 2-door BelAir sedan
56 Chevy 210 4-door sedan
57 Chevy 210 4-door sedan
1962 327/340HP Corvette
1961 Willys CJ3B Jeep
2001 Porsche Boxster S
2003 Chevy Silverado 2500 HD Duramax
2019 GMC Sierra Denali Duramax
56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension
Other vehicles:
56 Chevy 2-door BelAir sedan
56 Chevy 210 4-door sedan
57 Chevy 210 4-door sedan
1962 327/340HP Corvette
1961 Willys CJ3B Jeep
2001 Porsche Boxster S
2003 Chevy Silverado 2500 HD Duramax
2019 GMC Sierra Denali Duramax
I was running a Firestone Indy 500 tire with 32 to 35 psi of air in them. I am currently running a Mickey Thompson on the car(with pressures running from 12 psi up...depending on track conditions). That maybe where the bulge differs? I haven't looked into the sidewall thickness either. I know on my car what I had and what I had to do. Something worth noting with this topic...most people try to stuff the largest tire under these cars without making any modifications. However some don't really consider the application/setting. Yeah it might fit in there, but driving around with uneven roads...they may rub. For that reason, that is why I removed the leafs and went a different direction. Still need to mini tub