Removing/Rehanging Doors

[jim-bob]

I'm at the stage of removing the doors on my 67 GMC (my first)..I've searched a great deal for anything showing the correct way with no luck..I was told that I need to drill 2 holes thru the hinge plate while door is still mounted to cab so it will match back up better for rehanging..makes since I guess but DO I NEED to drill both sides of the hinge plates so it will match back up to the door AND the post? I cannot find any builds on here or video's on line showing folks removing the doors and rehanging them, etc..Is it always done by drilling or is there other ways? I have removed my doors WITH the hinges left on the doors..Should I have left the hinges on the cab? Please and Thank You!!