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Old 12-11-2007, 08:45 AM
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Backspacing on wheels??

Im wanting to buy COY wheels for my 63 chevy II. 20/10s on rear and a 18/8 or 18/7 on the front. It has a ford 9" that has not been cut. air ride will be on it so disreguard the leaf springs and the wheel tub's. I want alot Deeper dish wheel in rear than in the front. My ? is how do i detrmine that back space and offset of both front & back. "i want the look of those model DUB cars"! Thanks!!!

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Old 12-11-2007, 09:43 AM
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the way i determine backspacing is to take the wheel off and use a 2 foot ruler placed on the mating surface of your drum or disc, measure inside to all obstructions , this is your maximum clearance , then measure to the inside of your fender lip straight across and then angle your ruler about 30 degrees to the front and rear fender lips , write all of this down , generally you take off 1 inch outside and inside for your rim and tire clearance a total of two inches, you can get more clearance on the fender side by cutting and bending the lip ,but seal it well or it may rust on you, i hope this helps, maybe someone has other ideas
34 chevman
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