I have installed the Mopar Tailgate Reinforcement System along with the RC Spare Tire Relocation Bracket and the 2 mate up and are solid as a rock. This allowed me to mount my 37x13.50 to the tailgate safely. The set-up is solid as a rock and has 0 rattles, BUT there is some slight movement if I go over a large bump. My rubber bump stops are about 2" shy of touching the tire, so I'm trying to find something to provide a solid bumper for the tire to rest against. I know the Mopar relocation kit comes with new stops, but you can't buy those individually to my knowledge. I bought a set of the daystar extended bumpstops but they are so soft it's pointless. I did not trim them at all and just let them compress as I tightened the tire in place, but they literally are as soft as a nerf football. I'm sure different backspacing will vary in terms of how long those need to be to provide a solid backing, but does anyone have any ideas they can share?