Many, many years ago (1996) I bought a cable from a company called Service Express Company at 8909 H Street in Omaha, Nebraska 68127. I spoke to a man named Dan Bloomer and they made me a cable to fit a Mopar Tach Drive distributor and a Stewart Warner 535 AH-D. The seemed to know exactly what I needed and sent the cable right out. It's still in a box in my garage. Best of luck. Tom