Our bedroom slide would not seal up tight after a we had our 383 a year. Took bed completely out and found the jam nut on end of hydraulic ram was loose and the other nut had loosened also. The ram is connected to an angle iron that goes across slide wall. Lag bolts hold it to floor. Water had got in and particle board had damage. I cut a piece of marine plywood to fit over floor and glued and used wood screws to fasten it down. Reattached angle iron and readjusted hydraulic ram. It is holding up so far.