M 22 Rock Crusher Transmission Grinding Machine Cooper

M-22 Rock Crusher Identification The M-22 close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. The M-22 was only produced in a close-ratio version so it will not appear on models with high rear-axle ratios 3.55 or lower numerically unless someone has changed it.

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