I have a 76 with a 2 inch body lift, new duffs 3.5 sl and new body mount bushings.. tires are mtz 35s which are not really 35 inches tall.. i forget their exact hieght, I also have a speedy track soft top, anyways I have a standard garage door .. i have about 1.25 inches from top of bronco to weather strip that hangs down. I am thinking I could go with 37s and rub the weather stripping.. one think though I cant park in the middle of the garage because the arm for the door opener is to low.. that would tear a hole in the top at its highest point.. if i let the top down then i have 4 inches at least..