When I come to a stop sometimes I can feel the truck want to lurch foward, feels like Im getting hit in the rear a bit. Feels like a shudder of somekind more than a bang that would lead me to believe that its the slip yoke. Thought maybe it could be the convertor but keep it in second so it doesnt lock and it still does it. Trans shifts fine etc so Im thinking it has to be the slip yoke since its such a common problem. Im going to pull the shaft and drive in 4x4 to see.. Any other ideas?