Lower ball joint question

[MusicMan70]

Hey Folks...embarking on rebuilding the front end of my 1970 GMC truck, power drums, using the standard front end kit from PST....some questions please;

1- Can I leave the drum attached to the spindle?

2- Is this the proper tool to use to separate the ball joints
and placement? I've been banging on it and no separation yet.

3- I have the jack under the a-arm and PB blasted the ball joints as well as
safety-cabled the coil spring to the lower a-arm. What else?


Thanks in advance for any/all responses and suggestions, Henry