You guys are really impressive with your knowledge. Thanks for sharing. I'll have it home next week and get it on the lift for inspection and ID. I know there is an issue: the drive shaft rotates 1/2 turn before take up, and clangs pretty loud going from reverse to drive - the reason I didn't drive it home.

So I'm thinking I'd replace with an upgrade more suited for here on the farm. If I can replace as a unit, like the third member in a F...., my only experience, that's the way I'll go. Otherwise it seems to be a really solid old truck with plenty of umph. Input appreciated.