An inside look at the N-series M23 four-speed manual transmission from Auto Gear Engineering and an interview with designer George Sollish. ... and the M22 "Rock Crusher" in three ratios (2.20:1 ...

The Muncie 4-speed manual transmission holds a significant place in automotive history, renowned for its robust design and pivotal role in the performance car era. ... In 1965, GM introduced an even more robust version of the Muncie transmission, known as the M22 or "Rock Crusher." This transmission, with its distinctive whine, became ...

The Muncie four-speed is as legendary as the cars that it was put into, with the M20, M21, and Rock Crusher M22 models all part of the hot rod vernacular. From the OEM factories to racetracks to ...

M22: Heavy-duty close ratio four-speed manual, called rock crusher; ... Speed shifting: Shifting a manual transmission while keeping the engine at full throttle, aka powershifting.

Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1969 - 1973 model Chevelles and Novas. This one will have the holes on the side where a bolt will secure your shifter …

Transmission Yokes: M5R1 / M5R2: Clutch Packs: GEARBOX TEE SHIRT: Miscellaneous: Discontinued, Used, Sale. 1st gear: Shipping: Contacts: Instructional Videos: MT82: Muncie Parts > NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. View …

The M22 transmission has a 20 degree helix angle on the gear set as opposed to a 45 degree angle found on the M20 and M21 and were made with a higher nickel alloy. The straighter angle was designed to produce less end loading of the gear train and less heat but created more noise, thus the nickname "Rock Crusher" was born.

The Muncie M20 is an updated version of BorgWarner's T10 four-speed manual transmission, ... The M22 "Rock Crusher" followed four years later. It uses stronger components to handle big-block power. The original M20 was only offered for one year. It has the GM casting number "3831704" on the case.

This is a BEEFY version of the original Rock Crusher transmission. Most all the weak points of an original Muncie have been solved by the Super-Case design. The Supercase has extra casting in all the known weak areas. ... 1967 - 1981 Firebird Manual Transmission to Bell Housing Bolt Set 1970 - 1972 Firebird Hurst Competion Plus Four …

2. 04 represents the month code when the unit was assembled, April. 3. 21 represents the day of the month the unit was assembled, the 21st day of April.

It was primarily designed as a road race transmission. The straighter angle of the gearset produced less heat and less end loading of the gear train. Combined with high impact alloy gears this 4 speed really pushed the limits of it's aluminum case in drag race applications. Although the gears are not spur gears ( completely straight ) they ...

An M-22 holds up well. The downside is that it tends to make noise. It will rattle at low rpms and whine at higher rpms. The M22 is called the Rock Crusher. "Dump the Rock Crusher," hot rodders say. People think all …

The Legend LGT700 is an ultra compact, big torque, fully synchronized high reving 5-speed overdrive manual transmission. It is designed for high performance street and track use. You might want to look into it because it is rated at 700 T if not mistaken.. Check me here.. ... The M22 despite being called a Rock Crusher is not that strong.

The first time I heard the term "rock crusher" was in reference to the transmission in the 1967 L88 Corvette. Due to the low gear angle there is a fair amount of gear noise, really like a medium / heavy duty truck transmission. True enough the M22 did trickle out the door in 1965-67 and was buried in the option lists.

The new base transmission was a Muncie heavy-duty 3-speed manual transmission that was related to the Muncie 4speeds. The 1971 transmissions were the same as from previous year, except that the M-21 close-ratio 4-speed transmission was replaced with a stronger version of the Mun­cie close-ratio gearbox the famous M-22 …

An M-22 "Rock Crusher" is a Muncie four-speed transmission for cars made by General Motors in the 1960s. Identify a transmission type correctly before fitting it into your car. If you have the incorrect transmission, your car may not function properly. You can identify several unique signs that identify an ...

CrazyCrusher 2 Manual Rock Crusher SKU: CCM2 Sale price $515. Regular price $574. You save $59 (11%) Taxes and shipping calculated at checkout Add to cart Add 1 items to cart . Frequently Bought Together. …

This a BRAND NEW SUPERCASE M22 Muncie Rockcrusher Style Transmission. This is a BEEFY version of the original Rock Crusher transmission. Most all the weak points of an original Muncie have been solved by the Super-Case design. The Supercase has extra casting in all the known weak areas. The mid plate is aircraft grade aluminum.

The fact is General Motors couldn't use a standard 6307-style bearing with a width of 21 mm because the gears were already tooled and made. Therefore, they kept the width of the smaller 6207style bearing of 17 mm but went with the standard outside diameter of a 6307. This is called a narrow 6307 bearing (PN N307LOE).

"Where Our Customers Send Their Friends" Chevy Transmissions: Muncie M22 "Rock Crusher 4 Speeds were made From 1965 TO 1974: The most popular transmission of it's time for high performance cars built for Chevrolet and all performance oriented G.M cars.They have the same gear ratios as the legendary M21 but with a heavy duty gearset.

Below you will find a detailed parts list for the M21 & M22 manual transmission that includes complete rebuilt transmissions bearing rebuild kits with and without synchro rings, gaskets and seals, small parts kits, bushings, individual bearings, slider, synchro rings, forks, gears and shafts. ... Rebuilt Transmission M22 1966-1974 …

GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1967 - 1968 model Camaros. This one will have the studs coming out from the side where your shifter linkage mounts. This is the Muncie M …

ORIGINALLY, in the beginning of the Muncie evolution, there was the M20(wide ratio) and the M21(close ratio). A VERY, VERY, VERY few Heavy Duty, close ratio Muncies were specially built for severe duty service (such as for the 425hp/396 Corvettes) in 1965. THEY WERE NOT CALLED M22 IN 65-----they were simply a …

Why are Muncie transmission called rock crusher? 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"). Performance seekers decided to live with the noise when the benefits of increased durability from the gear-tooth angle outweighed the ...

3 Muncie 4 speeds were offered. The M-20 wide ratio, the M-21 close ratio, and the "Extra heavy duty close ratio" M-22, also known as the "Rock Crusher". The M-22 was generally installed behind severely powerful (high torque) big-block engines. The M-22 is distinguished from an M-21 by the angle of the gear teeth. The M-22 has "straight cut" …

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 ...

Many people know about Muncie transmissions and the famous M22 "rock crusher" transmission that has straighter cut gears that allows you to bang the gears without pushing in the clutch. ... It was a …

Many people know about Muncie transmissions and the famous M22 "rock crusher" transmission that has straighter cut gears that allows you to bang the gears …

M22 RockCrusher In 1963 the Corvette Grand Sport racing program was instituted. The early Grand Sports used a special heavy-duty version of the M21 close-ratio transmission. These special units evolved into what is …

This is a BEEFY version of the original Rock Crusher transmission. ... Manual Transmission 1967 - 1974 Chevy 11" Clutch Flywheel Dust Cover Inspection Plate, Manual Transmission GO 80W-90 Conventional GL …