Side mirror replacement

beaubeau wrote:
These are not Velvac

If not Velvac, can't help.
But I can, and WILL, reiterate the cautions for Velvacs and the damned foam Tiffin squirts up into the backside of the cap, obscuring all the mirror wiring.

I broke the lower mirror housing on one of our Velvac mirrors, necessitating replacing it, and encountered the foam encasement issues with the wiring inside the cap. Gave up on it, due to concerns about butchering the wiring and not being able to reconstruct things, and decided to leave the mirror mount outside the cap as is, and splice wiring from there. The foam inside the front cap is a big problem if total mirror replacement is necessary.