After your new door is installed remove the old stop material on the outside of the door and replace it with the type that has a rubber weatherstrip gasket available at home centers.
How to install garage door with torsion spring installation.
For doors with torsion springs located over the door spend the 50 or so to have a garage door professional release the tension.
Make sure that the bearing is inside the stationary cone.
Part 1 of 2.
Set screws should be turned from 3 4 to one full turn after they have made contact with the tube on doors with two torsion springs each torsion spring remove the locking pliers.
Finger tighten nuts on bolts until the stationary cone is flush against the center bearing plate.
Insert the bolts in the stationary cones of the new torsion spring and insert the bolts in the slots on the spring anchor bracket.