im really thinking about getting one of the rough country kits. 5 or 7.5 on their website it says recomended tire size is 33 on the 5 inch and 35s on the 7.5 inch. My question is can i put 35s on the 5 inch and 37s on the 7.5? also the difference between the 2 because theyre the same price. If i can get a 5" and get 35s in it why get a 7.5 if all i have to get is 5? anyone have either of these kits and any comments??