Doing a gear change on my 10 bolt, swapping in a new center section. I have new Moog ball joints in the older axle I'm replacing and as always having a heck of a time getting them out. Want to save the ball joints and knuckels to use in the new center section. Hit with the 5lbs hammer, start to mushroom the bolt & nut. Moves a 1/4" but dosen't drop out. HELP!!!