Clever approach, Bluesman. Thanks for all the info guys. I hadn't planned on replacing the pins, just the bushings, but it sounds like I should expect that my pins will need to be replaced.
Interestingly, my local Tulsa Auto Spring, which has been in business since 1924 and is very old-school and respected, only sells a shackle kit for the shackle end of the springs (they don't sell just the bushings or bushings and pins; you must buy the entire shackle assembly, $39 for each front, $55 for each rear). One can get just bushings and pins at the online places, so I'll probably go that route, because I don't think I need the entire assembly.
