Instructions for replacing a single torsion spring, for replacing garage door extension . torsion springs are different and the counterbalance hardware is unique. Learn how to replace garage door extension springs safely and easily with the tips in . Thanks as always for reading, watching, and being part of our awesome . Used this to replace a broken spring on my garage door. . National Hardware 7688 Garage Door Extension Spring with Safety Cable, Black, 25-Inch by 110- . Garage door springs can be replaced as a DIY project for less than 0, or by . There are two types of spring systems: a torsion spring system in which a single . Clopay's patented EZ-SET Extension Spring System unique system eliminates the need to manually lift the deadweight of unsprung garage doors. If you choose . Oct 12, 2016 - A torsion spring system is mounted at the top of a garage door. . An extension spring system has a pair of springs, which are installed over the two horizontal . This fun online tool lets you see our garage doors on your home!