Clint· Super Moderator
Most likely the trans was serviced (fluid change) then and may possibly be the reason the truck was for sale. I don't know why the shifter position would change how it shifts.I don't have any paperwork on it but in the engine compartment someone wrote "Transmission 128k" in there so I'm assuming it had work done on it then? That has all been checked at Nissan and our mechanic friend took a look at it and they both said it shouldn't be a problem. You don't think that that stuff would work?
Maybe it wouldn't be an expensive rebuild since it's still in decent shape.