The brown truck brought the new slip yoke, but the new Spicer 1350 U-joint is, well, somewhere (typical USPS tracking) so I went back to O'Reilly and bought another "Precision" 232 joint. After the usual struggle keeping all the needle bearings in place while pressing in the caps, I finally got the shaft together. Then it was simple to put it in the truck and grease it.
I don't like the look of the seating of one rear snap ring either (remember the first time the driveshaft came off, it was at the rear joint so that hit the ground). Will keep an eye on it with some test drives - but if the ear on the driveshaft yoke is damaged, that needs a shop to remove and reinstall a new yoke. I'm tired of messing with it, any further problems and I'll take it to the local driveline shop!