Bought my 2003 Grand Caravan 3.3L about this time of year in 2015. It had some rust at the doglegs at the rear wheels and the rocker panels. I cut out the rusted areas that I could, and sprayed Rustoleum, or some such, all over. Haven't checked the rust for some time. Yesterday, on impulse, I checked out the driver's side , back near the rear wheel, and was kinda surprised at how rusted it was. Got me to thinking, how far can the rust be let go, before retiring the van? I don't have a lot of extra money, and would like to drive it as long as possible. Any ideas? I took some pictures. Did not check the passenger side. I figure it's about the same.