Wondering if 275/60-15 tires on 10" wheels will fit on rear of my 73 Comet with stock 8" rear, need to know what backspace I would need for the 10" wheel
What 71gold said is correct. Backspacing for the 8" wheel with the 275 tire should be 4.50". I run an 8" wheel with 255/60-15 tires with a back spacing of 4.25". No rubbing.