When it come to allignment of doors. I only want to do the job once. But there are times when you have to put the doors on and then take them off several times in a build. So I made up these jigs. It is 1" steel cut into squares with a hole drilled in the center. Then I welded a piece of 3/16 round bar into the hole. Then I alligned the doors to where I was happy with the fit. I then drill two 3/16" hole threw the hinge and into the pillar of the car. Then when you put the door on again, you just push the pins threw the holes in the hinge and in to the holes in the pillar. Then tighten up the hinge bolts, and pull the pins out and close the door. It will be alligned exactly where you had it the first time Everytime.