im tryin to replace the axle on my ls and i noticed two things. first, im missing two screws for the rotor, where can i get some, and second, the bolt wont come off for the axle. me and a friend think a portion of it is welded in cuz the impact gun and breaker bar isnt budgin it and it looks like nothing but metal there. also is it a bad sign when tryin to remove that bolt that a 180lb man and a 170lb can stand on it and it just holds us in the air?