1969 4-speed Muncie M-22 ROCKCRUSHER TRANSMISSION Totally Rebuilt and Warranted by Professional Builder You will be bidding on a COMPLETELY rebuilt M-22 4-speed transmission, for Chevrolet, Corvette, Nova, Chevelle, Pontiac or Camaro First gear ratio is 2.20 to 1, 2nd gear is 1.64 to 1, 3rd gear is 1.28 and 4th is 1 to 1.