The dampner was loose but still tight, I wanted the guys to drill out the crank but they had never done that and I could not get them that kit Vintage Aire sells for drilling the cranks fast enough. It is on, and the truck actually has less vibrations while running down the freeway.
It is something which I will know what the sound means and can alert others about. I 'm glad the engine is still intact and I'm not wanting to stick a V8 in it.