I was hoping to avoid spacers, but I was rubbing too badly on the KDSS arm and sway bar for my liking after I installed my lift and tires. Clearance between tire and UCA was a little close for comfort as well. So I added them to fix those problems. It seems to have fixed that but now there is some new rubbing on the fender liner, although it's much less severe and more easily fixed. No noticeable difference in vehicle handling, although I've only really done highway driving over the holidays since install. I installed them per the included instructions. Included red loctite, torqued to 130 ft lb, drive 50 miles and check at 120 ft lbs. Imo, the stance is way better than a lifted 200 with factory offset wheels.