Just adding an update. While I've done various body and interior projects on this rig, this was the first time that I have tackled anything substantive beneath the hood. I'm noting this for those who haven't jumped in - between the FSM, this board, the Yahoo! 3FE group and YouTube (and a quick check by a mechanic), even those with little experience can successfully tend to their 60 series.
In the end, I changed the oil, the oil filter, the radiator, and performed a Rodney flush of the ATF. My vehicle was non-operational, and with some cash outlay for parts + my time, she's back on the road - driving as well as ever.
Everything went well (not necessarily smoothly), and full disclosure, I had to take it to Mudrak to have Gary do a pressure test on the radiator. (I had a small leak that I couldn't identify - turned out to be a lower radiator hose that had deteriorated to the point that it could no longer hold the pressure despite proper clamping.)
Biggest things I learned: eye protection and coveralls are key; be realistic with your time estimation; even when you think you have all your parts/tools, you'll probably encounter some issues (I had to drill out a broken bolt amongst other things); the filler neck of CSF radiators can easily get damaged during shipping (ended up using 1800Radiator - best price and delivered in under 2 hours!); per Mudrak, always change the radiator cap when installing a new radiator; Rodney flush is straightforward and works wonders - burnt smelling ATF is gone and vehicle is shifting smoothly; don't discharge AC when changing radiator - just remove bolts and lower condenser to gain access to rad bolts; finally, there's no more satisfying feeling than fixing something yourself!
