same happend to me, all the mud and water got in them because the seals were shot, all i did was take them apart and soak them in brake wash and they are better than new
Yea, what he said.you dont have to use the highlifter sealed bearings, you can use quadboss bearing kit and you get sealed bearings and the new seals all in one kit. and you save money. i use the extreme products disc brakes because the rotor is 4 times as thick and you can turn it if you get any scars or blemishes on the rotor. and the brake pads are alot better and you can replace them with the ebc sever duty pads for even longer life.