How to remove PS box

Lots of discussion about the steering coupler, all goid advice. but no mention of beating on pitman arm to remove it from steering box. Please dont. A pitman puller is less than 20 dollars and money well spent.
I will never beat on a pitman arm,as the possible damage to steering box could be fatal.

THIS The one at Horrid Freight works well enough. So far as the coupler, I usually pry it back some, then insert a large end wrench for a spacer so I can pry some more. They do get rusty. You need a large proper diameter punch long enough to "get up" where you can hammer on the pin. HF has pin punches, too