Appreciate your help, it is a rare truck. Hard to find reliable information on it. Just had the new clutch put in at a Toyota dealership. I thought for sure that was what was wrong with it. Made little or no difference so since it was a third clutch install with a resurfaced flywheel, I had a new flywheel put in thinking that was the problem.Now I'm at a loss other then the gearing of the rears.