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Old 10-01-2019, 01:39 AM
TAR6569 TAR6569 is offline
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Originally Posted by WILMASBOYL78 View Post
The buildsheet code 'M20'...does not indicate the specific transmission installed, eg; M20, M21 or M22...this code simply told the Fisher Body folks they needed to cut a hole in the floor for a manual trans. shifter. This is a very common point of confusion when folks look at the Fisher buildsheets. Basically the sheet indicated any work needed to the body to facilitate installing various options like; trim and moldings, floor shifters, consoles, decor packages, etc.

Was that a Willow Run thing? Flint 68 and 69 fullsize used the same type of card and I've seen M21 and M22 transmission rpo codes listed on them.
381 and counting in the 67-69 Impala SS427 registry
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Old 10-01-2019, 12:19 PM
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Mr70 Mr70 is offline
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Those are Fisher Body broadcast codes.
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