In case your garage door is made of steel then the hinges would be secured with hex headed screws.
Remove rollers from garage door.
Roll the door down to the next roller and repeat the same process for removing and replacing the rollers.
Use the 3 8 inch wrench to remove these.
Step 4 remove rollers.
Grab a socket wrench and unscrew the retaining bolts to the brackets that hold the garage door rollers.
Continue working on the rollers one at a time until you ve replaced all but the top 2 rollers.
I fall in the second camp.
For me unscrewing the brackets was much simpler and only took a few minutes per roller.
For the wooden garage door use the 7 16 inch wrench to remove the nuts that are used to hold the through bolts on the roller hinge.
How to replace upper garage door rollers.
After removing the nuts use a hammer to knock out the bolts.
Go to the other side of your garage door and bend the area of vertical track near the seam.
Bend the track back into alignment and then roll the door all the way open.
Pull the garage door so the roller lines up with the bent track and pop the roller out to replace it.