I have a 1997 Mazda B4000, 4.0L V6, 4WD. The truck has two outside rearview mirrors. One of them appears to be ever so slightly loose -- I adjust it for a good view of the rear and after a few days of driving it has slipped out of adjustment. Is there anyway to open these things and tighten the mounts? These are the OEM mirrors -- the mirror is enclosed in a plastic housing. They are manual adjust, not power.
Thanks.