So, the good news is that the frame off resto is about done. I had the 4 speed overhauled a year ago with whatever it needed at a transmission shop. Started the truck over the weekend, and it will easily shift into the four forward gears but will not shift into reverse. I tried every direction, but as I recall from childhood, reverse is to me and down. It has resistance there, it will come to me but will not even start to go down. Any ideas? I know nothing about transmissions. I suppose I can take the top off and stare at it.