I have a 34' travel trailer that weighs 13660 lbs. loaded. I'm pulling it with a 1997 F-350 DRW. The combined weight is just under 22k which is 1k over the truck's GCWR. I don't want to sink any more money into the truck which is going to need a transmission eventually. I'm looking at 6.7 F-350's and would like to stick to a SRW which is rated at 14k for conventional towing. Just wanting to see if anyone is of has pulled at this weight with one of these trucks.