Curt Manufacturing 17500 TruTrack Trunnion Bar Weight Distribution Hitch with Integrated Sway Control (10,000 lbs. GTW, 2" Shank) Levels tow vehicle and trailer and features a spring & cam system for integrated sway control (rated for up to 10,000 lbs. GTW / 1,000 lbs. TW, limited to lowest-rated towing component) Cam springs build up pressure for integrated sway control, while fixed support brackets hold the spring bars in place laterally and vertically Constructed with forged steel spring bars, a heavy-duty, welded head and protected by a durable carbide powder coat finish Hex castle nuts and two neutral spring bar settings allows for easy adjustment for different trailers, and tilt adjustment feature simplifies setup Includes 2" x 2" adjustable WD shank, pre-torqued 2-5/16" trailer ball, spring bars, head, support brackets, pin & clip