I have a 15 Ram 1500 crew cab Hemi Big Horn 4x4 and I installed the 5100s on all four corners with the fronts set at 2.8, used the stock springs up front, New Upper control arms/BJ from Movtech, installed new front CV axles from NAPA and a little down the road, installed extended sway bar links because the stock ones were short and were making the truck more jouncy from riding the sway bar that tight. I installed Tuf Truck variable rate rear springs which are stock rate until they are compressed 2" then they become a 35% heavier rate spring. I did this because I hook a car trailer to the truck and wanted to prevent sag. I needed to use 3" coil spring spacers in the rear to bring the truck level with this combination. My ride quality is certainly rougher in the front, and when I installed the old springs on the 5100s, I had a hell of a time getting the spring compressed enough to put the nut on the top. Since everything has been installed now, I have blown the passenger side inner CV boot on the new shafts TWICE. Also, my lower control arms hit the outer hub plate. The truck sits much higher than I expected. I have stock sized 20" Goodyear Ultra Trac tires.
I am wondering why I can't find reference to anyone else having these issues. The CV boot may just be because it's NAPAs finest CV boot, but the lower control arms smacking seems to be unique to me. The truck has been aligned. Any ideas?