Is a Muncie M20 a good transmission?
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….Guide to Muncie M20, M21, and M22 Four-Speed Transmissions.
| Muncie Four-Speed Gear Ratios | |
|---|---|
| M20 Wide-Ratio 1963-’65 | |
| Reverse Gear | 3.16:1 |
| M20 Wide-Ratio 1966-’74 | |
| First Gear | 2.52:1 |
What is a Muncie 4 speed worth?
Muncie 4 Speed M20 or M21. $2899.99 OR WITH Muncie CORE exchange $2499.99. If you have no useable core the price is $2899.99!!
Why is the Muncie M22 called the rock crusher?
M22 gears are also made of a higher-grade nickel alloy. The M20 and M21 cluster gears are cut at a 45-degree angle. The reduced gear angle of the M22 created a problem with noise (hence the name “rock-crusher”).
How can you tell if you have a M22 Muncie?
Because main cases are often swapped rather than being repaired, the best way to determine if you have an M20, M21, or M22 is to simply look at the gears. Without removing the sidecover you can look at the input shaft and check for identification grooves cut into the spline.
Where is reverse on a Muncie 4 Speed?
Reverse gear is a sliding gear. It has no ability to synchronize; therefore, you can only put a car into reverse when you are at a complete stop. The shifter shaft in the extension housing is the reverse shaft.
How can you tell if you have a rock crusher M22?
Look for the “GM” sign imprinted on the transmission box to identify the manufacturer of the transmission. Check whether there are any rings around the shaft splines. An M-22 “Rock Crusher” has no rings, so if you see rings in your transmission, it means it is not an M-22 “Rock Crusher.”
What cars did the t56 come in?
Applications
- Aston Martin DB7 Vantage, 1999–2003.
- Aston Martin V12 Vanquish, 2001–2006.
- Chevrolet Corvette, 1997–2007.
- Chevrolet Camaro, 1993–2002.
- Dodge Ram SRT10, 2004–2006.
- Dodge Viper, 1992–2007.
- Ford Mustang Cobra, 2003–2004.
- Ford Mustang Cobra R, 2000.
Who bought New Venture Gear?
Magna Powertrain
New Venture Gear
| Industry | Vehicle Transmissions |
|---|---|
| Founder | Chrysler Corporation Ford General Motors |
| Defunct | August 20, 2012 |
| Fate | Dissolved |
| Successor | Magna Powertrain |