This doesn't have a whole lot of relevance, but does have a little. My 67 "Cruiser" had a Chevy 3.31 rear for many years with the 200-4R. When I was getting ready to put it up for sale I figured it was time to rebuild the stored 10-bolt so the car would be a little more correct. As long as I was at it, I changed the gears out to 3.55's. Not much of a change, but after so long driving it with the slightly higher ratio I found myself cruising five MPH slower with the 3.55's if I didn't watch the speedo. Funny how we get used to a specific engine sound/vibration. I just mention this because if you live with the 3.23's for very long, a change to a lower rear gear might seem a little unnatural buzzing down the freeway.
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Mick Batson
1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 2+2 survivor AC auto -- 1965 Catalina Safari Wagon in progress.
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