Does every one run a full size spare? I have 35" mud terrains and a worn out 35" kelly mud tire as a spare. Problem is it wont fit on the stock spare tire carrier between the rear seat and tailgate (almost does) Right now it is flat on the rear floor, but would like to mount it upright between the rear seat and tailgate. Its so close that a 33" spare would solve the problem. since I run open differentals would a 33" spare be all that bad? The way it is I only run my current spare on the front with hubs unlocked if I need to use it.