Join Date: Feb 2010
Location: Between two places in Canada!
• Horses: 0
You are much better off replacing those fenders - though the rust may not be all the way through, they are NOT a cosmetic issue, they can be very very dangerous. I bought a trailer in similar condition to yours (door fell off it on the way home) and while, like you, the frame was solid and most of the outside was just cosmetic, the fenders looked like that and HAD to be replaced. I have seen a rusted fender painted over only to fall off a trailer and bust a tire. I have also been in a truck hauling a trailer whose tire busted, and it is honestly a traumatic experience.
Fenders are cheap. Try Princess Auto. Trust me, you're looking at a head ache and a dangerous situation by leaving those on that trailer.