The siding is cracking on the left lower corner of the bedroom slideout. I took it to the dealer I bought it from and the said they would have to keep it and figure out why this was happening. They said it could be from a broken weld inside the wall framing or it may be that it was never welded to start with. They said it also could be that forest river didnt install a expansion joint in this area where other manufacturers do and those units that have the expansion joint never have this problem. My complaint is why should I have to pay for this if it is discovered it was not properly done at the manufacturer. Its unbelievable this has accurerd in such a short time period. I've owned 5 5th wheels and never had this problem. What if anything can forest river do for me?