Less torque fatigue for a smoother, more comfortable ride. Features 5 side-to-side pivot to better accommodate hook-ups on uneven ground and easier towing. Quick installation. Easy removal in seconds allows full access to truck bed. Adjustment heights from 14-1/2" to 18". 16,000 lbs. capacity; 4,000 lbs. pin weight capacity. Two jaw locking system. Locking jaw handle. 5 year limited warranty. #30035 rail & installation kit sold separately. Will not fit trucks with beds shorter than 6' in length & Flareside/Stepside.