Moparts Tech Archive
E-Body Back Space?'swhat back spacing do I need for my 70 Challenger
I have a 70 Challenger and want to get some aftermarket wheels 15x7s but what backspacing would I need it has 4 wheel drum brakes
From what I've gathered, 4.25 to 4.5 is where you want back spacing on a B body, I'm wondering if an E body would be similar with not-outrageous sized tire (obviously you won't be running anything huge on a 7 inch rim).
4.5 is the max... 5 will put a 275/60/15 on the springs.
4.5 will fit good, 15x7 or 15x8.
Go with the 4.5 BS for sure. I bought some Keystone Klassics from Summit and they have the 3.5 BS and with my tires they all rub on the fender and I had to take them off and buy new rims again.