A crack at the corner of a slide out indicates that flexing is occurring at that area. It is most common in bedroom slides in the front overhang. Patching the crack will not stop it from re-occurring unless something to done to fix the flexing. Or if it is straight up at the corner, then gluing on a trim strip with 3M 5200 will hide it.
If you are buying this from a dealer, ask them to fix and warranty the repair or let you out of the deal. Depending on how much you have down, it might be cheaper to walk from the deposit verses the repair cost if it comes to that.
If you are financing it, they you may have to point this out to the lender to get them to kill the deal, if the dealer wants to play hardball with you.
It is best to not start with a known problem, and shame on this dealer for trying to sell it with the crack, or maybe they did not see it. What are they saying about it?
Chris
