Checked several of the build sheets and portions and they seem to only use the codes below for the four speeds. the other codes may be used but I do not have any examples of them.
XC- M20 L48, L35
XG- M20 L35
XF- M21 L78
XI - M22 L78
take care, Andy
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Andy
Team Chevelle #3135
ACES #08305
1969 Chevelle Trim Tag Research (On-going)
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