Thanks for posting this video. I learned a lot. I have a freeze plug leak on my chevy astro.

Very well documented! Thanks for illustrating the frustration that I'm about to "enjoy."

@Bob Wilingham I'm a bit late to the party and you probably don't even own that vehicle anymore, but here's a trick from a mech. The reason the jack is slipping is probably because the metal wheels are not rolling as the jack goes up, or, there's too much friction when they do. If the vehicle is on level and smooth ground, take the handbrake off. The rear wheels will roll forward as the jack goes up, stopping the slipping and banging etc.

well crap, I'm off to change out mine now in my 1980 chevy k5 blazer...yes boys I'm doing it myself, I love to work on my own rig!