For anyone with an 08 Monaco Knight with the top main slideout seals coming loose check out this link.
http://www.rv.net/fo.../print/true.cfm and this note from the manufacturer.
My name is Tom Dible and I am with Uni-Grip. The seals coming from us all have an automotive grade rust inhibitor in the formula for the steel we use for the spring steel clip. The problem lies when the RV manufacturer cuts the length of seal from the bulk packaging, at this point they have exposed an untreated surface where the corrosion will begin. We recommend all manufacturers to caulk the edges of the seal after it has been installed to prevent water from entering the area but very few follow our guidelines.
SacsTC, we still have the seal you're looking for. Feel free to contact me should you have any questions or need help identifying the part, I can be reached at email@example.com