How many months out of the year are you driving in salt on a regular basis? Around here they start using it in Ocotbr or November, and stop in April or later. Rust starts showing in 4-5 years, frames start going bad in about 15. I sold my 2004 Ranger last year because of rust, the mechanic who bought it said that when he started needle scaling the frame there were holes through it. I hadn't run it in 3 winters, trying unsuccessfully to keep it from rusting out. I had a lot of money tied up in it over a 3 year period; front end, new rear springs, brakes all around, new cats, 10 ply tires, etc.