Draw-Tite gooseneck hitch systems allow unrestricted use of the pick up bed. In ? truck platforms support 2-5/16 in. and 3 In. hitch balls. All framework for gooseneck trailer hitches reside under the bed of the truck with only the bed exposed. Stronger, and able to utilize the full suspension of the truck, these hitch systems are rated up to the full towing capacity of the vehicle. Rated for 32,500 lbs. gross trailer weight and 8,125 lbs. vertical load, tested to SAE J2638 Static and Reese Dynamic Specs for 30,000 lbs. gross vehicle weight rating. Rail kits are rated to match manufacturers vehicle weight ratings. Requires installation rail kit.