Depends on gears, all my RCs came with 3:55's and the stock recomended tire is a 235/75/15 which is a 28.5"-29.3" tall tire depending on manufacturer. I personally would go with a wider rim/tire combo on the rear I am running 17x9.5's with 4.5" of backspacing and 275x55x17's
1975 Ramcharger 6" lift 35" Mud Terrains 8 lug 44 front, 60 rear. (R.I.P.) 1976 D100 lowered 3" & 5" Now with a 440!!! (sold) On the hunt for another beauty to build.