This B&W RVB3500 Replacement Base is designed to fit the Companion 5th Wheel Trailer Hitch. This Base Only is part of the Companion Hitch that utilizes the B&W Turnoverball Under-Bed Mounting System. The B&W Companion 5th Wheel Hitch is designed to give you a hitch when you need it and a level bed when you don't. NOTE: This is the hitch base only.• Gross Towing Weight: 20, 000 lbs.• Vertical Load Limit: 5, 000 lbs.• Attaches utilizing the Turnover Ball under-bed mounting system• Easily convert from hitch to level bed• Requires no mounting rails to secure the hitch to the bed• Adjustable pivot arms let you mount hitch head (sold separately) to fit your application• Vibration dampening bushings provide a quiet, rattle-free towing experience• Adjustable foot pads that fit in the recesses of the bed Vibration dampening bushings provide a quiet, rattle-free towing experience Gross Towing Weight: 20, 000 lbs. Vertical Load Limit: 5, 000 lbs. | B&W Trailer Hitches RVB3500 20K Companion 5th Wheel Hitch Base Only, for Turnoverball