I took the truck to the local transmission shop for a trans fluid flush and new filters. I thought it would be good for the mechanic to look and see if anything was really wrong. They pulled the pan, changed the filter(s) and completely changed the fluid. He said the fluid was really dirty but not burnt. There were no metal bits on the drain pan floor, but minor on the magnet. He said the trans looked good and for us to give it 50 or so miles to see if anything bumps or shimmies.
Cool.

My free truck is getting better and better. I thought I was going to have some major problems with the trans.
Thanks for all the posts. This site really helps explain a lot of things.