Originally Posted by mxracer881
Do wheel spacers put more stress on your unit bearings and ball joints ? If they do how much wear will they do ?
Yes, but so do rims with less back spacing than stock. The tire moves further away from the axle, which increases the leverage applied to all the stock parts. Wear will depend on how big of a tire you use, how hard you wheel your Jeep and under what kind of conditions, the weight of your over all build plus accesories like bumpers and winches and armor, how fast you take corners, if you run a locker, and many other variables. The factory parts will last a good while with propper maintenance with 31's and some 33's, the front can handle 35x12.50's as long as you don't abuse it to badly, but you'll need to replace parts more often. The factory rear is only good for 33's unless you've got the Dana 44 rear end instead of the more common Dana 35.