174 STARTING AND OPERATING 5. Install and adjust the tension in the weight-distributing bars per the manufac turers’ recommendations so that the height of the front fender is approximately (H2-H1)/ 2+H1 (about 1/2 the difference between H2 and H1 above normal ride height [H1]). hitch safety, care, assembly, and operating instructions. Gooseneck Hitch The gooseneck hitch employs a pivoted coupling arm which attaches to a ball mounted in the bed of a pickup truck. The coupling arm connects to the hitch mounted over the rear axle in the truck bed. T RAILER H ITCH T YPE AND M AXIMUM T RAILER W EIGHT 6.
Perform a visual inspection of the trailer and weight-distributing hitch to confirm manufac turers’ recommendations have been met. NOTE: For all towing conditions, we recommend towing with TOW/HAUL mode engaged. Fifth-Wheel Hitch The fifth-wheel hitch is a special high platform with a coupling that mounts over the rear axle of the tow vehicle in the truck bed. It connects a vehicle and fifth-wheel trailer with a coupling king pin. The following chart provides the industry standard for the maximum trailer weight a given trailer hitch class can tow and should be used to assist you in selecting the correct trailer hitch for your intended towing condition.
Your truck may be equipped with a fifth-wheel hitch option. Refer to the separately provided fifth-wheel Measurement Example Example 2500/3500 Height (mm) (H2-H1)/2 14 (H2-H1)/2 + H1 1,044 Measurement Example Example 2500/3500 Height (mm) H1 1,030 H2 1,058 H2-H1 28 Trailer Hitch Classification Definitions Class Max.
Trailer Hitch Industry Standards Class I - Light Duty 2,000 lb (907 kg) Class II - Medium Duty 3,500 lb (1,587 kg) Class III - Heavy Duty 6,000 lb (2,722 kg) Class IV - Extra Heavy Duty 10,000 lb (4,535 kg) Fifth-Wheel/Gooseneck Greater than 10,000 lb (4,535 kg) Refer to the “Trailer Towing Weights (Maximum Trailer Weight Ratings)” for the Maximum Gross Trailer Weight (GTW) towable for your given drivetrain. All trailer hitches should be professionally installed on your vehicle.