I'm not quite sure what you are asking for here. Any 122s dash will bolt into any 122s. At least in my experience ranging from a '63 to a '68 they are all the same.

If you are talking about the instrument pods then there is a difference between the early ones and the late. I've got one of each and while they both bolt up to the dash correctly they have different sized speedo cable mountings. The early one is smaller. The early ones can be easily recognized by the warning light style. They are a small dot with the lettering below on a chrome surround. Later ones have a bigger light with no surround and have white lettering directly on the light. The change over was around 1964.

Ron Tewksbury
1968 122s
1978 244DL