From what I've read and understand of engineering principles, no way would I want to support the slides and risk goofing up the mechanism. I purposely set the slide side of the TT 1 1/2" higher when leveling the site. Once the slides are out the weight pulls it back close enough to level for me. I recognize there is a fair amount of shake noticeable as others walk around inside. I have to attribute this to the torqflex axles FR uses. What I am looking to do is use a set of ez lift jacks that will extend to 30" and place 1 on each side before and aft of the wheels at the frame rails. But, I designed and fabricated a special set of lift pads to to locate the force at the center of the rail, spread out the load and not go crazy with the extension of the jacking screw. My TT looks to have a fabricated c-channel as frame rails rather than an I-beam. The under belly is covered with corrugated poly material and is capped at the outer edges with some type of rt angled poly material as well, which I don't want to damage. None of the additional support will be on the slides only the frame.
2016 Flagstaff 27VRL Emerald
2014 GMC 2500HD CC 4X4 6.0L