A problem with the spring tension could cause the door to open or close . Before you can adjust the spring on your garage door, you must determine what kind . the door and will run along a metal shaft that's parallel with the top of the door. TORSION and SIDE-MOUNTED. Torsion springs are mounted on a stationary metal shaft located above and parallel to the top of the garage door frame. Aug 21, 2015 - Just like any spring, garage door torsion springs store mechanical energy, which makes them tighten. Torsion springs store energy by using a . Increase the spring tension if the door is too hard to lift. . along a center shaft at the top of the garage door and held under extreme tension by a collar or 'cone.'. Replacing broken torsion springs on a garage door. . If this manipulative, we-are-your-nanny business approach is truly in our best interests as consumers, . How much should a garage door spring replacement cost? . 7.3 Slide both torsion springs out above the top of the garage door toward the cable drums. Jump to How to Replace Garage Door Springs - Torsion Spring Replacement (Two Springs) . Video on How to Replace Garage Door Torsion Springs.