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Old 10-16-2012, 09:58 PM   #3
66C06
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Join Date: Oct 2012
Location: Rockwall, Tx
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Re: 66 ss wheel/tire question...PB Pro-touring dropmember

Quote:
Originally Posted by luvbowties View Post
Are you asking re: size wheels/tires you can run on an unmodified wheel housing and tub on a 1966 stepside?

If you are going to lower the rear any significant amount--and even if you do not--you will run into a limited space/width available for wider wheels/tires. With stock fenders and tubs, 7.5" to 8" will be about maximum width that will fit underneath. Even using 8 inch pickup/suburban/van/4wd-type rally wheels, they will rub with any decent size tires, as body sinks or sways either way, on the top sides of tire. There just is inadequate room--side to side--for a wider wheel/tire combo.

Possibly the simplest way to run wider wheels/tires is to either buy widened fenders(available only in fiberglas, based on what I found), or by widening the existing fenders; end result looks same either way you go. I, personally prefer the idea of widened fenders over widened tubs with the necessary underneath frame mods that must accompany them. YMMV.
Would narrowing the rearend help gain any clearance? The frame is going to be about 5.5" off of the ground once the dropmember coilovers are added. I figured I could get away with running a 20x12 with a 295/40/-20 tire...hell if I could fit a 20x10 with a 275/40-20 under it I would be happy. I would just need to figure out what offset to order.
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