Thanks for all the help guys. Yes, the motor is still assembled, and will remain that way. Runs tight and strong, and I'm not going to mess with that. However I am cleaning up the outside and the gunk from the inside that I can wipe off fairly easily.

Most of the cleaning will be done on the outside of the motor.

Does anyone know of an parts book (preferably online) to hunt down all the parts for these trucks? I have the old car manual online's service manual, but would love to have one that has exploded views and parts lists.