[Tim7139]

If you're previous set is beat up, you are over doing it with the hammer.
Two things I would suggest, both can be seen in that video.
First pull the wheels and clean , very well, any/all old antiseize off and if need be lightly sand down any scoring on the seating surface on the wheels.
Secondly, get some of the same Permatex silver, aluminum, antiseize and lightly apply it. Most guys beat the bejesus out of these things insted of moderate. When they stop moving stop pounding. Moderate is fine and my safety wire, I don't think, has ever tightened up.