I have a 2007 Travel Lite. It took a lot of work right when I got it to stop it from leaking on the roof and to replace OEM stuff that didn't work.
Travel Lite forgot some screws where the cab-over meets the roof. Putting more screws in the joint and then covering everything with Eterna-bond tape solved the problem but not before the nose cone was completely warped and delaminating.
We had to replace the Reico Titan jacks and the propane regulator.
Right now I had to rip the bathroom floor out because the bottom of the black tank rests on a wooden platform and the bouncing caused the corner of the black tank to crease and eventually crack. We had black water running down the floor of the camper coming back from Michigan a few months ago. YUCK!!!!
The floor and blank tank come as a pre-manufactured part. It looks like this http://i622.photobucket.com/albums/tt306/1989_S-10/1962%20Shasta/DSCF7116.jpg