On my Fleetwood Westlake on the slide out rails there's and end cap to help it line up. One of mine is broken and I was wondering if and where I can get one, see photo.
They are poorly engineered and fail easily. You can still get the plastic ones at Coleman Popup Parts. I replaced mine with cast aluminum BedWedgies from Popupmods. Pricy but you will never have to replace them again.
