Hey Rick.
I used almost a full 1/2 over the hight of the base.
Steve wants met to make some up and let people know that I have them, but don't have the dimensions for the base profile in relation to the holes. When I made mine up I just traced around the base after holes were put in, then cut sanded and polished.
One of the things that you will need to pay attention to, is keep the flat to the mirror base and the mounting holes square with the mounting base. Put the machined taper to the coach skin.
The extra backing plate I used was 1/4 in aluminum and used the old mounting holes to keep it in place. The area behind the backing plate and skin of the back holes, I used a epoxy stick as a filler.
I'm re-carpeting the drivers area, so removing the inside walls was no big deal. You might get around that by cutting holes in the area and covering with a patch, but it was nice to have all the room to work with while figuring out the backing plates and routing the wires.
Let me know if I can help in anyway!
|