Priming & painting a 35-40 frame

[ford nut]

I put a 4 link rear end on my 56 f100 and drilling out the old hangers was a pain in the butt! even when you center punch them the drill would wonder, making a nice keyhole mess. granted some were not a problem, but most just fought me. re-sharping drill bits. working upside down. I don't want to have to do much more of that. I could see frame re-alinement being a pain too. the acid dip sounds good though.