Just installed a new bumper and tire carrier a week ago. (Rock climber) Now noticing squeaks when I go over any rough terrain. Any idea what could be causing it!? It seems really sturdy and well mounted! I've got a 3" lift done at home last year surely it's not the springs... I have 35's on 17's. I've pushed around on everything and can't replicate what I get driving down a rough road! Thanks for your input! 2010 sport.