I am replacing the wheel arches with patch panels on my 93 long bed. The inner fender/wheel house is also badly corroded on the edge that meets the fender (like its gone). I can't tell, but it looks like the inner fender is spot welded to the outside wheel arch panel in a few spots and that's it. If that is the case, can I just cut out the bad part of the inner fender and patch in a few spots to the wheel arch (for stability) and rust bullet the rest of the inner fender? Or does the whole inner fender need to be replaced? I don't think it does a stellar job at preventing water behind it when new.

 

yes you can patch it. just save yourself alot of future hastle and use weld through primer. And make sure you paint the inside also