The nutsert I have will not work with the thickness of the door skin alone. On the other hand if you did as Cablemill suggest and add a plate inside the door, then joined the two together with the nutsert with the holes aligned for the mirror. That might work. The PO of my truck replaced the cargo mirrors with just one aftermarket on the driver's side and it flexes. I want to add a matching one to the passenger door and stiffen up the drivers. Thanks guys, I can do this.


Six volt guy living in a twelve volt world