How To Grease Trucks: Greasing The Fifth Wheel with Magnalube-GX Extreme Pressure Grease

5th Wheel training involves fifth wheel coupling that provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. Some recreational vehicles use a fifth wheel configuration, requiring the coupling to be installed in the bed of a pickup truck as a towing vehicle. The coupling consists of a kingpin, a 2-or-3 1⁄2-inch (50.8 or 88.9 mm) diameter steel pin on the front of the semi-trailer, and a horseshoe-shaped coupling device called a fifth wheel on the rear of the towing vehicle

Greasing The Fifth Wheel with Magnalube-GX Extreme Pressure Grease