They extend when the door is lowered and closed and retract as it opens.
Side garage door springs.
A garage door generally has two extension springs one on each side of the door and runs parallel to the track.
Either 4 c hook s or 4 w hook s sold separately are required to connect the springs to the jamb hardware.
Most of the time the end on the right hand wind is red and the left and wind is black as you can see on the graphic below.
Door with an initial tension of 110 lbs.
Both the winding and stationary cones are professionally installed for safe operation.
Install new or use this pair of left install new or use this pair of left and right wound torsion springs to replace broken sectional garage door torsion springs.
Two p730 springs one on each side of the door can handle a 90 lbs.
Garage door springs springs are a major part of your garage door unlike other components if a spring breaks you need to replace it to keep your garage door functioning and operating properly.
In most cases you can determine the wind of your garage door torsion spring by using the color coded system on the cones at the end of the spring.
There are two at either side of the door to help with the tensile strength of each spring even though the extension is separate from one another.