It s better if a cable ends up a little longer than a little shorter.
How to replace garage door wires.
Open up the door and use a vice grip just below the bottom garage door roller on both sides to hold the door.
Second once your door is closed and the springs are locked down with winding bars you can remove the bottom bracket from the track.
If you find this video useful you can help me by donating it don t matter if it s a small amount.
This should be a red rope with handle that is located near.
Unplug and disengage the garage door opener by pulling on the emergency release handle.
With pliers remove the old cable and replace it with the new.