Easy Custom Fit Under-Bed Installation, Fits Chevy Silverado / GMC Sierra 2500 & 3500 HD pickups. Weight Carrying Capacity: 6,250 lbs. (TW/GTW), Weight Distributing Capacity: 25,000 lbs. (TW/GTW). Power Puck mounting system provides uninhibited use of truck bed when fifth wheel or gooseneck is dismounted. Fifth Wheel Ready – Uses Outer Four Holes to Mount a Fifth Wheel Hitch. Passes SAE J2638, the Toughest Industry Standard.