First, thanks all for the information above, as I move through this truck (which is really growing on me) I have another question. I have replaced the Waterpump, Fan Clutch, front cover seal, oil pump seal, distributor o-ring, all the automatic transmission cooling and resevoir lines and all the coolant hoses, the pullys and belts (well, some are just new parts waiting to go in) and I'm down to two kind of critical pieces- the radiator and the alternator . It looks as if the radiator is original but the alternator has an '07 stamp on it. Would conventional wisdom say to replace both units to be extra safe and if so, -especially the radiator- which type is best, meaning a TOYOTA radiator or a newer all aluminum one (3 core). I think I would purchase the alternator from Toyota but I'm in flux regarding the radiator.
Any help is most appreciated.
Thanks