I want to add a passenger side fender mirror to my 1960 and I want to be sure I buy the correct one. I have the triple strut remote adjustable mirror on the driver side, but should the passenger side mirror also be a triple or a twin strut mirror? On the remote adjustable mirror, the center strut houses the adjuster cables, so it kind of makes sense that the mirror without the remote would be a just a twin strut. Does anyone know which is correct? Thanks, Gary