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 ...

There are three types of Muncie 4-speeds: the M20, M21, and M22. In short, each serves a different purpose today depending on how you plan on driving your classic muscle car.

The year 1969 marked the zenith of Yenko Performance with 201 Yenko Camaro Super Cars built (171 as manual transmission M21 cars and, for the first time, 30 three-speed Turbo 400 automatic cars).

One of only 129 units built with the W-30 high-performance option, this 1967 Oldsmobile 442 was part of Charlie Sheen's ...

My hope is that we can get the car running and driving for my senior pro. Features. Events. How ... (M20) and the close-ratio (M21). There also was a second, heavy-duty close-ratio version ...

Named after its place of origin (Muncie, Indiana), this four-speed is the final iteration of the Muncie 20-series lineup used in GM muscle cars, namely the M20, M21, and M22.

The original 427 mills, as well as the 302DZ engine, are all long gone, but Makovich has a “perfectly dated” 427 that will be going into the COPO Camaro and the car’s original M21 Muncie ...

A: Zack, I am excited that you and your father are working on a project car together. This is what makes the car hobby so great. The Muncie four-speed transmission was used with many different ...