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STARTING AND OPERATING 175
With Weight-Distributing Hitch (Correct)
Improper Adjustment Of Weight-Distributing Hitch
(Incorrect)
RECOMMENDED DISTRIBUTION HITCH
ADJUSTMENT
1. Position the truck to be ready to connect to
the trailer (do not connect the trailer).
2. Measure the height from the top of the front
wheel opening on the fender to the ground,
this is height H1.
Measuring Height (H)
3. Attach the trailer to the vehicle without the
weight-distribution bars connected.
4. Measure the height from the top of the front
wheel opening on the fender to the ground,
this is height H2.
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]).
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.
Your truck may be equipped with a fifth-wheel hitch
option. Refer to the separately provided fifth-wheel
hitch safety, care, assembly, and operating
instructions.
Measurement
Example
Example 2500/3500
Height (mm)
H1 1,030
H2 1,058
H2-H1 28
(H2-H1)/2 14
(H2-H1)/2 + H1 1,044
4
22_DPF_OM_EN_USC_t.book Page 175
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