I`ve got a 2002 quadcab w/ the 4.7 in it. 157,000 no problems. still has the factory brakes on it ! and yes , I have pulled a heavy car trailer quite a bit. would I rather have a hemi / yes, I`d like more power for the same mileage.-----------for what it`s worth, I had to put front wheel bearings in at about 150,000 , and an ebay radiator about the same time. that`s it !