Open up the door and use a vice grip just below the bottom garage door roller on both sides to hold the door.
How to replace garage door wires.
This should be a red rope with handle that is located near.
How to replace your garage door cables.
Anything counts link down below thanks htt.
With pliers remove the old cable and replace it with the new.
It s better if a cable ends up a little longer than a little shorter.
Second once your door is closed and the springs are locked down with winding bars you can remove the bottom bracket from the track.