One more quick question if all else seems to be fine. Is it possible to have a bad main bearing etc for the crank to move back and forth. I didn't recall seeing any signs by the balancer when checking area. Should I try and pry a little to see. I don't know of everything the rebuild consisted of just before I got the truck locally, but I do know he put down 3700. Now he's overseas and I can't get any info. Hopefully the shop did what they said they did lol. Maybe my time is going to be tied up here shortly.