Lca pivot welded to k frame

You may be able to gain some knowledge by searching member Jim Lusk, he has a ton of info on k-frames and repair .
He shows up this link, understand he has some vids, not sure if pertinant.
Good Luck
https://www.forabodiesonly.com/mopar/threads/pivot-shaft-to-k-frame-bushing-fit.244693/