I also found that the dealer did not know much about adjusting the slides - so I did it myself. For the most part, it is somewhat straight forward, if you understand the mechanism, and basic static/dynamics - however I took several course on this subject in school.
I, on the other hand seem to have a slightly different problem. It appears there is just enough slide up/down and side/side movement during travel that the black rubber weather striping seems to be squeezing about and making black marks on the outside of the trailer.
Anyone else having this problem?
Rick & Wanda
2003 2500HD Crew Cab
Duramax with Allison Trans.
Firestone Airbags
Glide-Ride Pinbox - It's Great!
2006 3400RL - We Love The Trailer!
Montana Customer Service?