I have had my 2018 Cummins for a couple of months and am ready to sell the 1500. It has 52,000 miles, and has always been maintained with full synthetic fluids. It is a Hemi 8 speed, 3.21 axle. It has Mopar fiberglass locking tonneau cover, brand new Michelin tires, Airlift 100 bags, front...