Oldsmobile 442 W-30 with ties to Hollywood royalty crossed the auction block once again at Mecum’s Florida Summer Special, reigniting interest in one of the most desirable muscle cars of its era.

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.

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 ...