I currently am driving the truck in my sig. But there is a 2006 Ram 2500 Regular cab cummins for sale locally for 20,000$$ The truck has 31K for mileage. The bed has a gooseneck and is rhino lined over the rails, has custom 18" wheels with 35"s. I went and looked at the truck I will test drive it tomorrow, but it has a Smarty and the edge with attitude moniter. The interior is leather and it is an auto. The transmission is my main concern like I said I will test drive it tomorrow and check if they put an aftermarket pan on the tranny to indicate upgrades in that arena. What else should I look for?? The dealership says it was a trade in.