Hey guys I have a 1952 ford customline v8 with a 3 speed manual trans. Mac auto parts and Dennis carpenter offer 19,20,21 and 22 teeth speedo gears for this car. Just seeing if anyone knows which one will work?! The gremlins in the garage took my old one so it's not around to count the teeth
They will all work, but you will have to check calibration after you get it installed. Run the car on a measured mile after install and see how many 1/10s your turning in a mile, say you install the 21 tooth and you clock 9/10s in the mile (10% slow) you would need to go to the 19 tooth gear to correct it. 2 teeth less at 5% per tooth will speed it up 10%. Hope this helps.
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