Muncie 4‑Speed Transmissi...

Aug 03,  · GM's goal with the Muncie four-speed was to produce a better shift employing larger synchro cones. He tells us both the M20 wide-ratio and M21 close-ratio transmissions were first offered in 1963

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This is a Completely and Freshly Rebuilt Original 1965 M20, (M-20), Muncie Wide Ratio 4 Speed Transmission. (no aftermarket or imported gears), and the coarse spline small output shaft. Originally installed in 1965 Chevy, Corvette, Camaro, and Chevelle.

Jun 13,  · The Muncie four-speed transmission was heralded by many as an “indestructible” four speed used by General Motors, and found its way into many different car models, behind various engine combinations between 1963 and 1974. If you are not sure how to distinguish between an M20, M21, or M22 Muncie, knowing what to look for can be tricky.

Hurst competition plus 4 speed shifter. Muncie 4 Speed & GM Manual Transmissions Buy Sell Trade. Ships to you. $950. M 20 Muncie. Attica, KS. $1,250. Borgwarner Super T10 Power Brute 2.88 first gear. West Berlin, NJ.

The Muncie 4 speed manual transmission was use by General Motors in Bel Air, Biscayne & Impala, Chevelle, El Camino & Malibu, Corvette, Nova & Chevy II. Different overhaul kits are available depending on the extent of the overhaul that you planning, the contents of the kits are described as follows:

The transmission shift. MUNCIE M-20/M-21 EARLY, G.M. (451) 7 bolt side cover used from 1963-68 * MUNCIE Shaft Identification The above Muncie 4 speed transmissions can be distinguished from the style of the transmission arm attachment. Pre '69 Muncie's use a stud & nut at the indicated attachement point, while '69 and later Muncie's use.

GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1967 - 1968 model Chevelles and Novas. This one will have the studs coming out 

Muncie four-speed manual transmissions came in many GM models of the '60s and '70s. They were used in many muscle cars and Corvettes. Milder GM cars used 

1964 to 1968 Muncie 4-speed transmissions can be identified from later models by the way the transmission arms attach. Early Muncie side covers had a stud and 

Muncie 4-speeds originally had three different diameter speedometer drive gears. The six-tooth gear (no longer available) had no driven-gear options except for one steel 20T pencil gear. The parts resource guide lists two major diameter drive gears: 1.76 and 1.84 inches.