1966 dual master cylinder

think the adapter goes for $35-$40 at RMS. don't see it by itself on the site but i know he sells them..
Thank you Joe, This info should get me some where, if the plate is $35-40 and my rode will work like 66340SEADAN's did it could be worth the extra cash, but I am going to see if I can get a 67-74 drum MC in my hands and see if my push rod will work
Yall have been a great help today :cheers: as always your Arkansas friend on the hill.