Finally gave up on a call back from Jayco and being a retired diesel mechanic fixed the sliding shower door. Biggest problem was lifting it out of the track, all three doors and the top track that supports the doors have to come out as a unit and with one of the main rollers missing the doors did not want to stay together. The doors have six rollers to carry the doors, 1 was out, 4 were loose, only 1 was tight. Tightened everything up and took a guess adjusting the rollers. Rehung the doors and everything works great. Doors are better aligned than when it came from the factory. The next time I have the door off I will put Lock-tight on the screws.
2012 F350 6.7L Crewcab Dually 50 Gal Titan
2014 Jayco Eagle Premier 361REQS Intermediate MOR/ryde Pinbox