OK I must be really stupid cause I can't figure this out.Loosen the top nut by turning it clockwise as you look down on it and swivel to stalk where you want it. Then tighten the nut in the other direction. You may need to hold the bottom part in place for the final tightening as it can loosen if you turn the top nut too hard.
pat-No. Wee mirrors are entirely right hand threaded. The base screws into the perch and the brass shaft taper gets squeezed into the base by the cover piece.
thank you for the info.
i ask because i am having a REAL HARD time getting my right mirror off so i can install the extender.
i guess some squirts of wd40 and try not to chew up the retaining nut.
thanks in advance.