Prime-Line GD 12229 Left Hand Wind Garage Door Torsion Spring &ndash; Replace Broken Garage Door Springs - .243&rdquo; x 1-3/4&rdquo; x 32&rdquo;, Red, Left Hand Wind REPLACE BROKEN SPRINGS  Use this steel left hand wound torsion spring to replace broken garage door springs. It includes stationary and winding cones. REQUIRES  The use of two winding rods for replacement. When dual spring installations are involved, it is important to correctly install both the left and right wind springs during the same job. SELECTION  Torsion springs provide lifting force for heavy garage doors and must be selected by the springs dimensions, rather than the doors weight. Use the Prime-Lines Torsion Spring Selection Guide to ensure the proper replacement part has been selected. DIMENSIONS  Garage door torsion spring is: .243 wire size x 1-3/4 inside dimension x 32 length with red color code. MOUNTING - Right hand springs are mounted to left side of center and left-hand springs are mounted to the right side of center (inside the garage looking out).