FYI - As an alternative, I am towing a 3500 pound open trailer using a '07 uplander, 3.9 liter v6. I added firestone airbag springs to rear and KYB heavyduty rear shocks. Works well, its quiet, roomy, keeps all my gear dry, the extended version carry's a ton of stuff, gets about 17 mpg at 70mph plus across the flatlands of wisconsin. Get the '07 as they have heavy duty brakes and tow package trans cooler as standard.