always good advice, that.
i'd prefer to get a spare and rebuild it at my leisure. that gives me the opportunity to show my son how it works, and we can walk thru the parts replacements and setting up the gears. he doesn't need to master the skill by any means, but understand the process and precision it takes to do the job correctly.
i have found some of the necessaries, i prefer to x-ref with factory part numbers to ensure that i get the correct parts the first time. having a spare to compare to parts i cannot cross ref is also helpful. any sources that you can refer me to for parts is greatly appreciated. also, reference material. alldata and mitchell have very sparse info on drive line specs for this particular vehicle.
first thing i've checked is slip yokes and universals. i have a full set of u-joints on the way, easy work and just good maintenance. slip yokes will be indexed, separated, cleaned, and then lubricated. easy saturday project for him to help me with, and we can cross those off the list of baseline work.