Thank You, After I cut the tailgate I cut and scribed a 1 by 6 pvc board from Lowes it will not shrink or rot, I then epoxy and silicone it in place sides and bottom. I than got a can of spray foam an filled in behind the pvc to bond the pvc stronger the metal, making sure not to get the locking linkage in the foam after it expands. I than cut and bent the diamond plate and epoxy that to the pvc and metal, make sure to prime and paint all metal after cutting to prevent rust. I enjoyed doing this project, also make sure to measure twice and cut once, it is not easy to repair the finish on the exterior of the tailgate. Making this job easy for me was due to years of building and designing limousines and adaptive driving equipment for the disable. I also built and sold RVs, my businesses were in Pennsylvania.