Reese DRT30868 Elite Series 5th Wheel Rail Kit for GM HD 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