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The Muncie Wrench, pictured with the input shaft nut for reference.

The Muncie Wrench

Muncie 4-speed models M20, M21 and M22

The Muncie 4-speed transmission will be around for many years to come.  Be prepared for the next one you get to play with!  Made of heavy duty precision-cut steel, our Muncie wrench easily removes and installs the thin-walled input shaft retaining nut.  As an added feature, we cut a rounded-rectangular hole into the handle shaped specifically to operate the forks after the assembly process.

Heavy duty quality at an economical price!

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