The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's big-blocks in the mid-1960s. The M20 and M21 transmissions produced from 1963-'74 are easy to identify in both wide- and close-ratio units. The M22 to come later in 1967-'74 is also a close-ratio unit, but much stronger than the M21, with a higher torque capacity.

More Information on Muncie M20, M21 & M22 Transmissions. The Muncie M20 is an updated version of BorgWarner's T10 four-speed manual transmission, The M22 "Rock Crusher" followed four years later. It uses stronger components to handle big-block power. The original M20 was only offered for one year. It has the GM casting number

M22 rock crusher 4 speed transmission $2,500.00 + $150.00 shipping Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo $2,395.00 + $100.00 shipping Muncie Close Ratio - M-22 Rock Crusher Four Speed Transmission - ALL NEW GEARS $2,695.00 + $100.00 shipping Check if this part fits your vehicle Select Vehicle

The M22 Rock Crusher 26-spline input shaft sports a wider gear for greater torque capacity. Just because you've found a 26-spline input shaft does not mean you've found an M22 input shaft, which is

THIS TRANSMISSION IS A DIRECT REPLACEMENT FOR YOUR TIRED M20, M21, OR M22 TRANSMISSION. WILL MATCH YOUR 10 SPLINE CLUTCH PLATE, 27 SPLINE DRIVESHAFT YOKE 

Muncie also had a second close-ratio transmission designated M22 and often referred to as the "rock-crusher," which was used behind the highest-performance 

Muncie M-22 Rockcrusher 1st gear. Correct for 2.20 Close Ratio Rock crusher transmissions with 17 degree factory cut gears. Heartbeat City offers only the very 

Offered for your consideration is a GM Muncie M21 Heavy Duty Close Ratio 4 Speed Manual Transmission . It has a 2.20:1 first gear and 1:1 fourth gear ratio. This Muncie was removed from a 1963 Corvette that was getting a 5 speed upgrade.

An M-22 "Rock Crusher" is a Muncie four-speed transmission for cars made by General Motors in the 1960s. Identify a transmission type correctly before 

Muncie M22 "Rock Crusher 4 SPEEDS FROM 1965 TO 1974: This page is devoted to OEM Complete units; New aftermarket units and OEM parts and NOS parts. We use original M22 Cases and M22 Gear Sets or rebuild them with our aftermarket M22 Gears when the original gears are too worn to be re-installed. Please Note - If you are having difficulty in

muncie. m22. rock crusher '71-'74 4-speed manual transmission: input shaft. 26 tooth, 26 spline; close ratio . professional quality input shaft: iso9001 certified; fits '71-'74 m22: close ratio; industry awt297-16f; photo shows similar, but not actual input shaft; aftermarket, imported; we ship every weekday from warehouses nationwide.