Need truck advice

Rod - Jakes truck was bought new in white marsh, MD and lived it's life in airville, pa. The wheel well rust was starting when he bought it 2 hrs ago. 6 months later he could put hs fingers thru it. 6 month's after that, he could hold his hand flat and go wrist deep on the right side. Interestingly enough, my 05 is going faster on the right side as well. We are only 45 minutes south of you.......