2006 F350 SD 6.o diesel, crew cab, 4x, long bed, with a sneeker tow lift (weighs 1000lbs) mounted under bed, 85k. I tow cars daily and load the bed with construction landscaping materials all the time. I service it regularly, without hesitation on cost, and so far no major problems. As said all previous replies are right on. Take care of that truck and it will take care of you. If youre using it to work, I highly recommend it. Tires arent cheap and when one battery goes you have to replace both. But i spend sometimes 6hrs a day driving and its like a comfortable mobile office.