This is an original MTD, Yard-Man, Troy-Bilt, Yard Machines and Bolens part for use with Lawn Tractors and Lawn Mowers. The deck lift lever torsion spring attaches to the lift lever and controls lift lever motion. The most common reason for replacing the torsion spring is when the rear door won\\\'t stay in place. This part is sold indivi...Read moredually. The tools that you will need to replace the torsion spring are channel-lock pliers, hammer, and a large flat-head screwdriver.