Ok, after reading a bunch of your threads, a lot of you are saying you should turn your rotors. First, what does that mean? Second, when i'm breaking, the whole truck gets bumpy. Is that something that can be fixed by turning rotors? Also, I use my parking brake a lot, can that mess up my rotors? Lastly, if i do need to get new rotors, what kind do i get and how much do they cost? I've read that cermix brake pads are the way to go. Thanks for the help.