A gear-like rail, on either side, allows the fifth wheel to be moved and locked into position.
The fifth wheel is attached to the mounts by pins so it can tilt forward and back.
Fifth Wheel Pin.
The pin, and fifth wheel are covered with grease to lessen friction and wear and tear.
A fifth wheel pin lock.
You need a key to remove it.
Fifth Wheel Pin on an RV Fifth Wheeler.
A fifth wheel, in a pick-up, to pull a fifth wheel RV.
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