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If installing aftermarket wheels(Cragar SS or Torque Thrusts) in 15 inch will they clear the brake caliper without having to use spacers. If they won't work what size rim do I need to go to that will clear the caliper? This is on a 75 C.3
Last edited by truckerlary; 04-28-2017 at 05:40 PM.
It's not the diameter or the rim, that you need to be concerned with, when putting aftermarket wheels on a C-3 (as long as they're at least 15"). It's an interference issue with the spokes on the inside of the wheel, being able to clear the calipers, as the calipers are significantly wider than most calipers.
American Racing made a Torque Thrust wheel especially for Corvettes, to clear the calipers.
15 inch thru 17" dia. can interfer with parking brake bracket.
18" rim larger are past the E- bracket.
after market wheels with correct backspace fit fine.
any rim width wider than 10" will create a problem.
your target wheel size should be 8"-9" width, 4 " backspace, ... choose Dia.
Ideal tire fit for 75 tire 245-255 .
keep your overall Tire Diameter same as original.
I tried to install a set a Cragar SS but the brake calipers didn't clear. Had to use a 1/2" spacer....did not want to do that so I installed a set of American Racing Torque Thrust II...been loving it ever since!
I have 17" American Racing Torq Thrust II on my 1975 Convertible. They have 4" backspacing. My tires are 235/55-17 Firestone Firehawk Indy 500's. The diameter of stock a tire size is 27.4" and mine is 27.2". The width of stock a tire is 8.9 " and mine is 9.3". No rubbing, relocation of E-brake cable and they fill the wheel well very nicely.
I tried to install a set a Cragar SS but the brake calipers didn't clear. Had to use a 1/2" spacer....did not want to do that so I installed a set of American Racing Torque Thrust II...been loving it ever since!
A lot of aftermarket wheels do not have the spokes clearanced for the Corvette calipers. If you look at our brakes, you can see that the caliper extends past the wheel mounting surface on the brake disc by a little bit. That is the issue.
Some wheels are designed for the that and the manufacturer knows. The only other option is to test fit a wheel prior to putting tires on it.
It's not the diameter or the rim, that you need to be concerned with, when putting aftermarket wheels on a C-3 (as long as they're at least 15"). It's an interference issue with the spokes on the inside of the wheel, being able to clear the calipers, as the calipers are significantly wider than most calipers.
American Racing made a Torque Thrust wheel especially for Corvettes, to clear the calipers.
Here is a old American Mag that clears the caliper on my 1966 Corvette
I don't see any balance weights on any of them. They can surely not be that perfect? What do you guys do? (see my other post about balance weights) Truckerlary had some interesting info - couldn't get "clip-on" weights on my aftermarket "original style" wheels, but presumably TT2s will take them?
I don't see any balance weights on any of them. They can surely not be that perfect? What do you guys do? (see my other post about balance weights) Truckerlary had some interesting info - couldn't get "clip-on" weights on my aftermarket "original style" wheels, but presumably TT2s will take them?
In order to "properly" balance a wheel/tire assembly, it is sometimes necessary to place wheel weights on both the inside and/or outside of the wheel. This becomes evident especially with a dynamic (spin) balancer.
However, most enthusiasts, in the name of appearance, put the weights somewhere on the inside of the wheel. If you can obtain some of the "slim" weights, you can possibly put the weights right on the centerline of the wheel, and they'll still clear the calipers.
I don't see any balance weights on any of them. They can surely not be that perfect? What do you guys do? (see my other post about balance weights) Truckerlary had some interesting info - couldn't get "clip-on" weights on my aftermarket "original style" wheels, but presumably TT2s will take them?
TT2s have a lip on the back of the rim like an original rim so just put weights all on backside. Worked for me.
you add stick on weights just behind the spokes for balancing front edge, for no visible weights on the outside.
any decent tire shop knows how to do this.
04-28-2017, 05:34 PM
Aftermarket Wheels
