I had a 65 GTO tri-power close ratio Muncie with a 4.33:1 rear. I remember it being a 4 pinion unit when I had the cover off. It was my wife's daily driver for about a year. It was pretty miserable for her to drive, but she got the hang of it. The manual steering was more of a chore for her than the gearing. Federal speed limit was 55 when we owned it. So it was tolerable at 60 MPH. It was pretty punchy around town, but not a good choice for a Pontiac V-8. My friends 69 Ram Air III GTO was quicker in a street race. It had a 3.55 or 3.23 whatever was standard with a 4-speed. I was told the 65 came with the 4.33 ratio. Bought it from the original owner but no PHS back in those days.
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