The parts manual for the interconnecting rod between carb levers shows a part number change for the rear Rod end in 70/71 versus the part number for 66-69. Also both of the swivels (mount rod ends to carb lever) changed part numbers in 68 and again the rear only swivel changed in 70-71.

Is there some slight difference in shape of the swivels and rear rod end. The front carb rod end kept the same part number 66-71.

Any comparison pictures to show the difference? Thanks,