platinum01
Full Access Member


37's will probably hit backside of your fenders, inner fenders and front bumper skirt when turning. I had a 6 inch in my 02 and 37 inch irok super swampers just barely cleared. (I had to trim the front bumper skirt) In order to clear my 38's on 20x10 wheels I had to jump up to an 8 inch and then added another 2 inches (shackle and hanger kit) just for safety. 35's are about max for a 4 inch you might be able to fit 36's but I doubt they will clear without hitting something.
A shackle and hanger kit is only good for the leaf spring front end. (99-04) It just relocates the front springs down lower. You could do a body lift to your truck but most of manufactures don't reccomend body lifts for diesel trucks. Another option would be to see how much it would cost to upgrade your 4" to a 6". Sometimes some of the parts are the same therefore you might only need a couple of pieces.