thanks for the quote laroke. although it may all be for naught.

late this afternoon i crawled under the truck, took the generator off in preperation for replacing the armature. once i had it on the bench i broke it down and discovered that the spring holding one of the brushes had slipped out of the hole and as a result the contact became intermitant at best. procured a new (nos) spring from my donor generator, put it all back together, fired up the truck and lo and behold! it worked!

what is they say...we're only as strong as our weakest part.

thanks guys for your input. this is such an amazing site to be a part of if for no other reason than to commiserate about what confronts us on a daily basis as an owner of one of these great old trucks.