While many people know about the big blocks and raw power of classic muscle, the Muncie four-speed transmission is what sends ...

According to Cangialosi, GM took the basic T-10 design and beefed it up to conceive the Muncie M20 and M21 four-speed transmissions ... and stronger internal parts. This is when you have to ...

Named for the Indiana town where the transmission factory was located, the Muncie came in three basic flavors: the wide-ratio M20, the close ... carefully tapping the parts into position with ...

So while all Muncie M20-series transmissions featured a combination of these shafts, they aren't strictly interchangeable with the M22's. The M20-series as we know it today actually derives its ...

The first contributing factor was which Muncie four-speed transmission was to be installed in a particular application: an M20, M21 or M22. The second contributing factor has to do with getting ...

This GTO Judge features a replacement 400-cubic-inch Ram Air III V-8 with a Muncie M20 four-speed manual transmission and a Safe-T-Track rear axle. As the proud owner of a 1968 GTO, I would be ...