Sidewinder is the premium pin box coupler designed specifically for short bed pickups. Sidewinder's kingpin locking mechanism moves the pivot position 20 inches rear of the coupler's attachment point. This enables Sidewinder to handle up to a 90-degree turn effortlessly. Sidewinder also offers faster steering wheel response, making backing up easier than ever before. The pivoting pin box makes hook up possible at any angle. And since the towing position of the arm of the pin box is locked in line with the truck, you can make full use of the truck bed space, giving you extra storage space for fuel tanks, toolboxes and cargo. Sidewinder has cleared rigorous testing by BOSCH automotive proving grounds and exceeds all CSA Standard 16K ratings requirements for RVs.