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Old 06-14-2014, 08:44 PM   #3
pwdcougar
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Join Date: Oct 2013
Location: New Jersey
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Re: "modern" rims on 70 Burb

Welcome!

Backspacing on a 15" styled steel rim from the 70's is 4" and worked great on my 70 K10. Backspacing on a 2000 16" Chevy aluminum rim is over 5". The hub size is different too. Hub size for a 1970 is 3.5 and the late model rim is 3"

You are gonna need a heck of a spacer.

Paul
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1969 Mercury Cougar Standard 4 speed
1969 Mercury Cougar XR7 convertible
1970 4WD Chevrolet Suburban
1997 4WD Chevrolet Silverado Extended Cab Short Bed (purchased new January 1997)
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