2011 Ford F450 Super Duty Crew Cab Owner Guide 4th Printing - Page 251
2011 Ford F450 Super Duty Crew Cab Manual
Page 251 highlights
Tires, Wheels and Loading Vehicle type F-250/F-350 Single Rear Wheel (SRW) F-350 Dual Rear Wheel (DRW) F-450/550 Preparing to tow Use the proper equipment for towing a trailer and make sure it is properly attached to your vehicle. Contact your authorized dealer or a reliable trailer dealer as soon as possible if you require assistance. Hitches WARNING: ON PICK-UP TRUCKS, the trailer hitch provided on this vehicle enhances collision protection for the fuel system. DO NOT REMOVE! Do not mount a ball hitch (sometimes referred to as a trailer ball hitch or trailer ball) to the bumper or use a hitch that clamps onto the vehicle's bumper or attaches to the axle. You must distribute the load in your trailer so that 10-15% for conventional towing or 15-25% for fifth-wheel towing of the total weight of the trailer is on the tongue. Hitch ratings The standard hitch has two ratings depending on mode of operation: • Weight-carrying - requires a draw bar and hitch ball. The draw bar supports all the vertical tongue load of the trailer. • Weight-distributing - requires an aftermarket weight-distributing system which includes draw bar, hitch ball, spring bars and snap-up brackets. The vertical tongue load of the trailer is distributed between the truck and the trailer by this system. To determine which trailer hitch your vehicle is equipped with, refer to the trailer hitch label located on trailer hitch cross tube. Once you determine which trailer hitch you have consult your authorized dealer, the RV and Trailer Towing Guide provided by your dealer or online at https://www.fleet.ford.com/showroom/rv_trailer_towing/default.asp. 251 Rear axle ratio 3.73 4.30 3.73 4.30 4.88 Maximum GCWR - lb (kg) 19000 (8617) 22000 (9977) 19500 (8844) 22500 (10204) 26000 (11791) 2011 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)