Tie the extension spring to the roller track then detach the cable from the bottom bracket with a pair of pliers.
How to install the springs on a overhead garage door.
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.
Slip the torsion springs onto the spring tube the red winding cone on the left end the nylon center bearing center bearing plate and the black winding cone torsion spring on the right end fig.
Place the second panel on top of the first one.
Make sure the quote includes the trip charge parts and labor.
Start your garage door spring replacement project by getting a rough measurement of your springs length and diameter.
Then ask for a price based on 7 19 lift cables and double life springs.
Release the tension on side mounted extension springs by lifting the door and locking it in place on each side with a pair of locking pliers.
Then measure the width and height of your door.
With a friend pick up the new door panel.