In a message dated 5/25/04 6:26:04 PM Eastern Daylight Time,
Trvlr2001@AOL.COM writes:

>
>          I just used the two bolt hole that my manual mirrors used to bolt
> to, and left the third hole empty rather than drill the doors. I've only
> had the power mirrors on for about a month, but a Westie I knew well had
> them mounted this way for many years without any trouble.
>
>

power mirrors are heavier than manual ones..and the metal base is potmetal -
every time you open and close the door it will stress the base of the mirror
if you dont add the 3rd screw..  over time it may crack.   i just drilled a
hole and ran a stainless sheetmetal screw in the bottom hole. worked fine.

chris