For trucks with factory installed fifth wheel mounting systems. No mounting rails. Fully articulating head allows front to back and side to side pivoting. Features Include:^Polyurethane bushings for a smooth rideSide-to-side dampening1" thick wrap-around jaws fit kingpin perfectly, eliminating sloppy starts and stopsFORD OEM Model: Puck System^Three vertical adjustments from 16.75" to 18.75"2" of front to back adjustment with four coupler positionsFootprint: 33.5" Wide x 16.5" DeepGM OEM Model: Puck System^Three vertical adjustments from 16.75" to 18.75."2" of front to back adjustment with three coupler positionsProduct Weight: Base 78 lbs, Coupler 75 lbs.RAM OEM Model: Puck System^Three vertical adjustments from 17" to 19"6" of front to back adjustment with four coupler positionsProduct Weight: Base 131 lbs, Coupler 75 lbsFootprint: 43" Wide x 34.5" Deep