Thats what I needed. I think I have the correct gear because the toploader
I was using had the speedo output on the same (left) side.
53 F100, Volare clip, 4 wheel disc 390-wide ratio toploader
"When plunder becomes a way of life for a group of men, they create for themselves, in the course of time, a legal system that authorizes it, and a moral code that glorifies it."
Political economist Frederic Bastiat, The Law