We have a 2014 Trail Runner,recently our slideout broke. We found that on the top of the traveler slide is a composite type grommet that acts as a stop is gone. We think we have found the part through a manufacturer. The problem is getting the new part in. The slide rail system appears to be welded in place prevent me from taking the rail out to install the new part. Has anyone had this issue or had to replace something like this? Any help or inside would be very appreciated