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Muncie Info
Just discovered that my '65 Tempest has a 4-speed Muncie unit ... case says "GM Patent 3925660" which I believe decodes to a 1968-70 unit with a 1" bore.
What is better / worse about this unit than say the one produced in 1965? And would this be an M-20 or M-21 unit? Can't find much more on this casting / patent number... |
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