I've been using this for my tow vehicle for several years, works great. 288K miles on it, have receipts from where the exhaust manifold & turbo was redone about 30K miles ago, alternators have been rebuilt, when I was having it serviced last year we found a couple of shavings on the diff drain plug, so we rebuilt the rear end. 10k lb. Dana rear end, it is stout. Redid the lift pump right after I got it, got stranded on the way to a race, had the fuel system checked out then. I've towed from Georgia to Watkins Glen, Mid-Ohio, Daytona several times, tows well. Last trip from Mid-Ohio, the mechanical vacuum pump failed & took out the serpentine belt. New serpentine belt & vacuum pump. While doing the roadside repair, accidentally broke the the nipple off the top of the radiator that goes to the overflow tank. Epoxied & plugged it for the ride home, haven't swapped radiator yet. Prodigy P2 brake controller, Jensen stereo with video screen if you want to put in a back-up camera, put on a towing mirror on the passenger side, haven't installed the one on the driver's side yet, mounting holes were in the wrong place & didn't have time to measure & drill holes, replaced the rear compartment low lights with LED's, they put out more than the high setting lights do, and don't get as hot. Built in inverter & battery charger, you can either run a 120 off of the inverter, or plug in the umbilical to charge the batteries. 1 battery is 3 years old, other is 1 year old, NAPA Gold. TONS of storage, rear heating and air conditioning, exterior lighting to help with loading or working on race cars, has some lights that will strobe on command, new head light lenses, A/C & heat work well, new tires put on ~14K miles ago, decals professionally removed, 7.3 Powerstroke, just bought something easier to haul folks around while at the race track. $6500 OBO.