As my 3500 Savana is my first full size van, I realized that it's also the first vehicle I've owned without protective wheel well liners. The sheet metal is just painted the same color as the exterior panels. Unpaved roads leads to rocks being thrown up in the metal and making more noise than I like. Also, road grime, mud and destructive road salt will propagate the wheel wells with an obviously corrosive outcome.

What can be done? Spray-in bed liner material? Rust-proofing material? Aftermarket liners? I've seen fender aprons being sold by aftermarket market companies but don't know how the fit would be. Any suggestions?

 

Just get a generous layer of paint on there.

All those other products will just trap moisture and it will rust from the inside.

 

 

Krylon undercoating is what I use now. Knock the rust off with a wire brush and wipe with denatured alcohol. I use krylon bedliner for my lower panels