Can anyone help me ID the year of my wiper transmisssion linkage? From what I understand a 67 is different than a 68/69. And the 68/69 set-up will work in a 67 but not the other way around. I assume this is because of the astro ventilation. My linkage has the #s 24 stamped on each end of the short bar and 53 stamped on each end of the long bar. Thanks, Jim.