How to Adjust the Height of a 5th Wheel Trailer Pin Box  

Expert Reply:

When adjusting the height of a pin box such as # LC1191191 it is important to support the pin box when removing the bolts. I recommend 2 or 3 buddies to give you a hand and make sure no one is beneath the pin box while raising or lowering it.

With the pin box supported unbolt it, raise or lower it as needed, and then put the bolts back in and tighten them down. According to Lippert use the following torque specs:

Torque 1/2” bolts a minimum of 110 ft-lb.
Torque 5/8” bolts a minimum of 160 ft-lb.
Torque 3/4” bolts a minimum of 210 ft-lb.