I don't think that the Accessory position was added to trucks until '67. I suppose you could use the later switch, also used in vans up to the early '80s, if it will fit the hole in the dash. Is there any particualr reason you want an Accessory position on the ignition switch? I just added a secondary switch in the wire going to the coil to kill the power there when I only want to run the accessries.


Bill Burmeister