I don't often agree with Bulldogger but that is good advice. What most on here don't do is go back after a few days and retighten the mani screws after the heat has loosened the screws. When you first took out the stock mani's the screws had a loctite material on them. Either use something similiar or just easier to check back every so often and make sure they are tight. Loctite is too permanent in my opinion for those screws. Your probably going to take them off again at some point.