About M22 Rock Crusher
If you have a GM or Chevrolet muscle car from the 1960s, then chances are you either have or want an M22 Rock Crusher in it. Rock Crusher was the nickname given to the Muncie 4-speed transmission. The sounds the gears produce as they engage sound like crushing rocks, and allow the car to sound like it has a blower drive. The straight angle on the gearset puts off less heat and it allows the vehicle to get up and go. Not every car in the 1960s had a Muncie 4-speed transmission, but many of the SS versions of cars such as the Chevelle and the Impala came with these transmissions standard. You can still add an M22 to your hot rod, and the first step is to find one. With the vast inventory on eBay, you can find your very own M22 Rock Crusher to install in your original or restored muscle car. Once you have it installed, you can hear for yourself the reason that it rightfully earned the name Rock Crusher.