Upgrade your Boss plow with the Aftermarket SmartHitch Torsion Spring Kit. Compatible with SmartHitch1 and SmartHitch2 plows, this set of 2 springs is essential for secure attachment to your vehicle mount. Note: for 10ft plows, use # MSC07673. Also known as MSC05076, MSC5076, and 1304798. Keep your plow in top shape with this reliable kit.