Thanks, redrivergorge: Yeah, dropping the driveshaft and removing the u-joints was easy with a vise and sockets, but I was having a hard time pressing the new ones in using the same tools. I think I was having a bearing cap alignment issue, and couldn't get the bearing caps to go in (I was careful that the needle bearings were in place), so I dropped the stuff off at a good local mechanic who has a press and will do it for me for a few bucks. Reinstalling the drive shaft assembly should be smooth. I was careful to mark the mating parts with chalk for alignment.