On 2004 Nov 23, at 17:50, Tom Young wrote:

> That's odd... In both my Vanagons, including the one where I replaced
> the
> right-side mirror with a BD OEM mirror, the right-side mirrors have
> ALWAYS
> "self-adjusted" while the left-side mirrors have been just fine.  In
> fact,
> many of the Vanagons I see on the road show this same situation; left
> mirror
> OK, right-side mirror obviously out of kilter.
>
> I've always wondered if there is some physical explaination (e.g.,
> precession induced by a rotating load, which dictates the use of
> left-hand
> threads in some situations) of why this patter should occur, but I've
> never
> come up with one.

This phenomena isn't limited to the stock mirrors, either.

I was tired of not being able to see as well as I'd like, so I got some
mirrors off a 70's ford pickup at a boneyard. The kind that are about a
foot and a half tall and bolt both above and below the window. The
driver's side is perfect, always aimed correctly even when on a
downhill and I can hit that rare 75.

The passenger side I have not been able to get setup properly at all.
Every time I set it, something goes wrong. It loosens up and moves, the
rubber under the clamp slips out, something. I finally gave
up and let it be. I figure I'll tackle it this spring when I do the
major overhaul of things I'm planning.

-Zach