How cold is it where you are at? Truck parked outside in the snow and salt brine muck? Sometimes rebuild starters aren't too good. They will work OK, just not for very long. Or when it gets esp. cold. Some years back I had to took a propane torch to the starter and thaw it out, got my truck out of the parking lot the next day anyway. It was well below 0. I did not want to replace a starter outside and figured it might loosen up some and get the truck home.
That replacement has held up pretty good since then but taking no chances I recently bought a new one from DB electrical, and a new bendix, solenoid, it's all ready to go. If it ever warms up in the garage. The problem with starters they can be bit or miss. Try to breakdown at home if ya can.