Thread: Muncie Tranny Question
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Old 06-26-2008, 01:56 PM
68Biscayne427 68Biscayne427 is offline
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Default Muncie Tranny Question
OK. I got my new rear axle housing installed with the new gears and carrier unit. Everything runs well. I did change the gears from 3.43 to 4.11s and now the speedo is correct at all speeds. Where as before it was off anywhere from 5 - 15mph. Question: wouldn't it make sense that if a Muncie 4-speed had a 4.11 speedo gear installed, (for the speedometer) that it would be a close-ratio 4-speed? I have yet to figure out if the tranny is a M20, M21 or M22. It does have a wine when I drive it but I have never heard a "true" M22 to compare it to. It almost sounds like a small blower when I am driving it...

Thanks - Rob
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Rob M.
'68 L-72 Biscayne, M22 4-speed
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