Was screwing around in a junkyard today and found this attached in a 1970 RR. The engine was long gne and the linkage was covered in about 1/8 th of grime. When I saw the zercs I thought it was odd so I pulled it and bought it. After cleaning it up it is inexceptional shape and tight. Just curious if anyone has seen this style before. Aftermarket? 1980's? Thanks!