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E-Body Back Space?'s

what back spacing do I need for my 70 Challenger

Moparts Member
Posts: 1160
From: Ravenna Ohio Usa
Registered: Jan 2000
posted 09-01-2002 08:25 PM

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


Moparts Member
Posts: 983
From: Yarg!
Registered: Dec 2000
posted 09-01-2002 08:26 PM

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).


Posts: 6119
From: bloomfield hills, mi, usa
Registered: Jan 2000
posted 09-01-2002 09:01 PM

4.5 is the max... 5 will put a 275/60/15 on the springs.


New Member
Posts: 63
From: Wilmington NC USA
Registered: Jul 2002
posted 09-01-2002 09:13 PM

4.5 will fit good, 15x7 or 15x8.


Moparts Member
Posts: 184
From: Aurora, Oh
Registered: May 2002
posted 09-01-2002 11:06 PM

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.



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