Refurbishing Upper Control Arms (UCA)

This would make a awesome how to thread. Mods?
Yep, lots of good stuff here. Wish I would have 'discovered' vinegar sooner. Would have saved a lot of time with a wire wheel on a drill. I did some evaporust at much higher cost and I think vinegar works better. Only advantage of the evapo is it did not re-rust right away if not coated soon.