I have a 2002 Ford F-250 XLT Super Duty Power Stroke diesel V8, 4x4, single rear wheels extended cab with 8 foot bed .. a work truck I picked up with my 2003 Keystone Challenger 34 ft 5th wheel. Tows beautifully, plenty of power, but it's basically a work truck with a rough ride. We're seriously considering trading in for a Chev/GMC Duramax Diesel 2500 similar cab, but a 6 foot bed to take advantage of their GM dealer price promo, to get a more comfortable ride and shorter length of truck to maneuver. I originally wanted the Duramax but the price for the Ford couldn't be beat at the time. My Question: What differences will I find as far as hitching, towing weight displacement and general handling and ride? Do I have to change the hitch or the kingpin or use an extended or floating pin? Anyone with experience or information will be greatly appreciated.