I’ll have to measure he base. I do know that door was swapped at some point in its life (I bought it as a heap) because that side has deluxe door mechanics. I’ve asked and other said a 67 remote mirror wouldn’t make a difference. I really don’t want to spend 160 for a remote unit to find out it doesn’t matter anyway.

http://windycitymusclecars.com/osrv...a-b-1968-firebird-2nd-design-w-hardware/

I’ve seen that design sometimes listed as it fits a 67. I don’t know if some late units got that design?