Thread: Passenger side mirror

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First of all, what are your stanchions - OEM style or an after market? And stainless or aluminum. There are sooooo many combinations that have evolved over the years that this is a difficult question to answer. If they are OEM style, and SS, they may have a flat just waiting your very sharp drill and then are thick enough for that single post, 5/16-24 thread after market clone. My '31 has a pre drilled and tapped hole on the LH side, but since I have side curtains, ended up with some Sun Spec mirrors, door mounted which work just fine and with virtually no shake, which you will have in the stanchion mounted.

In this photo you might see the hole in the stanchion, though it does have a SS screw in it, as well as the mirror. I have the same arrangement on the pass side, but with a convex mirror which works well too.

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thanks for the replies, today I bit the bullet and opened up the back of the post, a piece of aluminum was spot welded to the back, ground the welds and opened it up. There is a nut welded to the inside of the post to support a mirror. Of course now I have to think about how best to open it up as they welded not only the outside of the nut but but left a large glob in the center of it.

Post a photo (s) when you are done.