My Z came to me with the "racing style" door mirrors, and like so many others before me, it fell apart because after years of adjustment, the ball stud pulled through the hole in the adjustable shell part. This left me with the shell housing part completely off in my hand and the mounting half still attached to my door. So with nothing to lose, and for the trivia, I figured out how it originally went together. First, I took the mirror off the door and disassembled it. Looks like this: Typica