I'm using a 1981 Camaro 10 bolt on my '50 3100. I'm trying to determine what offset/backspacing wheel I can get between the wheel mounting surface and the fender. I have 5" from the mounting surface to the inside fender surface/bed side...I have just under 6" from the mounting surface to the rolled lip on the outer side of the fender. I want to use at a minimum an 8" wide wheel. I would like to use a 255/70 tire on a 18" wheel. I'm trying to get as much wheel and tire under the fender without tubbing the box. I've never had to measure offset/backspacing. I want to be correct when I make my purchase...too late then if I was wrong! I assume that 1/2" to 3/4" would be enough clearance on each side?
I have to believe you high performance "bolters" can advise me correctly.
