[customcamper72]

I am running a tuff country 6" spring lift, on a 72 K20, dana 60 front, 14 bolt rear. 38-13-16 TSL's on a 16 x 8 wheel with 4.5 " backspace, front fenders are trimmed up front even with the bottom of the core support, no other trimming done, and tires just barely rubbed the rear of the back wheel well openings( like rubbed the paint off only), under extreme flexing while doing some rock crawling in an old river bed. this with a set of very soft springs, with a little trimming, it should never rub.