8
1. Verify that the king pin is clean and free
of burrs before installing the King Pin
Adapter. Remove any burrs with a
2. Slide the King Pin Adapter over the king
pin and install one Adapter Plate Bolt
through the smaller cross hole nearest
3. Install the Adapter Bolt Reinforcement
in the Adapter Plate, then the remaining
Adapter Plate Bolt and Flat Washer
through this tube. Install nut and snug by hand.
the position you would like installed; placing the hitch ball ahead of the king pin will add additional cab clearance
during tight turns, but does not guarantee total cab clearance for short bed trucks. Likewise, placing the ball behind
the king pin will reduce the trailer-to-cab clearance. Orient the King Pin Adapter appropriately and make sure it’s
aligned parallel with the king pin box.
the King Pin Adapter and the king pin box’s skid plate may be uneven due to several conditions, e.g., concave or
convex skid plate or a skewed king pin.
7. Torque both Adapter Plate Bolts installed in Steps 2 & 3 to 75 ft. lbs.
should not be necessary most of the time.
KING PIN ADAPTER INSTALLATION
NOTE: It is important that you check the tightness of the adapter set screws often, as they can begin to work themselves
loose over a period of time from the normal stresses of towing.
A6 A5 A4 A1
A2
A3
TOP ANGLE
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