Hi, I had problems with one of my slides sealing and I took it to the dealer twice and they did not get it right , even replaced parts with no help. I finally adjusted it myself and all is well . The original problem was at the top left corner when slid in and the slide lock Crabman mentioned would have fixed it but I had already taken mine to the dealer and then they got it out of adjustment on the other side at the bottom when slid out. My dealer might not be very good with those procedures .
The slide should seal tight all the way around or else you will have the chance of water intrusion, pests, and air.
2013 Jayflight 32bhds , Outside kitchen,Bike/Cargo rack,thermal pkg,elite pkg,elec stab jacks,outside grill,pwr awning,roof ladder,hideabed sofa,technology pkg,15k btu A/C upgrade,8,367lbs dry wt
1994 Chevrolet Crew cab dually 6.5td,auto,silverado