Torsion see above which mounts on the header above the door and extension photo 1 which floats above the upper roller track.
How to install extension springs on garage door.
Check out my other.
Then detach the lift cable from its connection point on the door rail near the garage door just above the garage opening and thread the loose cable around the sheave pulley attached to the spring.
Home owners can replace an extension springs safely by following these steps.
To do this you will need to first detach one end of the spring from its mounting point at the back of the garage door rail farthest point away from the garage door opening.
Granted garage door spring installation work requires time and attention so it is best to save the task for the afternoon of a free day.
Complete instruction to repair a broken garage door spring.
However this requires mounting the torsion spring on the rear of the horizontal tracks.
Place scale under the garage door on the side of the door with the broken extension spring.
This can still be done when only one extension spring is broken.
Garage doors operating with torsion springs require a minimum of 9 1 2 inches of headroom while doors using extension springs require a minimum of 4 1 2 inches of headroom.
Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers.
It is possible to mount torsion springs in a garage with only 5 inches of headroom.
How to replace a garage door extension spring.
Weigh your garage door.