Ball Joint, tips advice?

[Dale99]

I'm about to go outside in an hour and start taking the front axle apart to replace ball joints. I was wondering if there are any tips or advice? It is a 72 1/2 ton.... so dana 40?

I do understand the axle needs to come out before I can knock the spindle off. Do I need to pull the diff cover and undo anything before the axle comes out? If not, when I pull the axle out, should any gear oil come out the axle tube and need a tub to catch it?

Any other tips?