They all rust just as bad as the other... My friend had to trade in his nice low mileage mid 2000 ford because the cab mounts were totally gone. My bro's gmc has no rockers left plus the bumpers look like they are going to fall off. My 01 cummins has more miles x2 than both of those trucks combined and less rust. My friends 08 GMC looks like it sat in ocean around the rear wheel wells. My 95 ram with 154k has no rust... but it's a 2wd and didn't see much snow/salt.