I cut the third brake light off the bracket, trimmed the rubber stops about 1" shorter, and mounted my spare 37. I did this 9 months ago and have wheeled numerous times and have not had any problems (sagging or squeaks). I do have a 1" body lift and the bumper is in the factory location. The tire tucks much closer to the body than stock and its weight is also partially supported by the bumper. I feel with the weight of my 37" tire the only reasons I have not experiences any issues is because the tire has less leverage (closer to the body) and experiences no excess vibration (partially resting on bumper).