Ratios of the M20, M21, M22. Muncie 4-speeds were produced in two different ratios wide-ratio (M-20) and close-ratio (M-21). An extra heavy duty close-ratio version (M-22) was also offered on many of the big-block high-performance models.The choice of transmission was dictated by the engine size and rear-axle ratio.
Although the gears are not spur gears ( completely straight ) they still produced a fair amount of gear noise thus the "Rockcrusher" name. These 4 speeds sound like a blower …
He mentioned he had a M22 rock crusher in his car, and how rare it was because only a few of the M22's were "Rock Crushers". ... as if you could actually put rocks in the transmission and crush them into gravel . ... rock crusher muncie and a 12 bolt posi that they would shift from first to second around 60 mph. jim . Jim 70 chevelle, SS …
If you have a Muncie with a similar character after the date, can get a photograph of it and KNOW whether it's an M20, M21, or M22, please pass it along. 1968. 1968 Muncie transmission tag #3924706. Date stamped P8P27 for Muncie, September 27, 1967 and partial VIN of 18K116891. Reported to be M21 but cannot find tag number to verify.
The M21 & M22 is a four speed, RWD or 4WD transmission. The M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. The side cover has seven bolts and two shift cams. The synchro rings have 35 teeth and the unit has a 4 step cluster gear. ... Rebuilt Transmission M22 …
Home of the world's best 4 speed muncie transmissions and parts. We also offer muncie rebuild kits, racing parts and m22 rock crusher transmissions.
NEW, Complete 67 - 68 Camaro Muncie 4 Speed Conversion Kit now available! This kit will get you everything needed to convert a automatic 1969 Camaro into a four speed machine! You have a choice of a original rebuilt GM Muncie M20, M21 or M22 Rock Crusher.
STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR Upgraded Ultra CASE With The Strongest M22w WIDE RATIO or Close Ratio Gears for a 4 SPEED TRANSMISSION. A GREAT HEAVY DUTY …
MUNCIE 4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS APPLICATIONS: GENERAL MOTORS 1963-1974 GENERAL MOTORS (HIGH PERFORMANCE) AUTO GEAR EQUIPMENT ... L36-s36T: M22 'Rock Crusher' (1964-74) 3924796 WT297-12B NOTE: these TWO (2) gears w/o snapring counterbore on cone …
Get the best deals for muncie m22 rock crusher at eBay. We have a great online selection at the lowest prices with Fast & Free shipping on many items!
STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR ULTRA CASE With The Strongest M22z ULTRAWIDE RATIO 4 SPEED TRANSMISSION. A GREAT HEAVY DUTY ROCKCRUSHER FOR YOUR CAMARO, NOVA, CHEVELLE, CORVETTE, GTO,442. THE MAIN CASE IS THE STRONGEST MADE with fill and drain plugs. C355 …
Each new SuperCase transmission is built from the highest quality available. Includes all the goodies: SuperCase, gear ratio choice, heavy-duty set with a oilite bushed side …
AG Roller Side Cover. A great Super Heavy Duty Rock Crusher M22 for your Camaro, Nova, Chevelle, Corvette or other GM car. Close Ratio = 2.20-1st, 1.64-2nd, 1.28-3rd, …
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 …
NEW DESIGN MUNCIE M22 ROCK CRUSHER CLOSE RATIO 4 SPEED. THIS IS THE M-22 TRANSMISSION THAT GM COULD NOT BUILD! Newly designed STATE-OF-THE-ART Muncie front case from "Auto Gear". This is by far the "BEST" replacement aluminum case ever built for a Muncie!
Muncie M20 - M21 - M22 Transmission Seal and Gasket Kit Part # 297-55 (#122224122800) d***w (508) - Feedback left by buyer. Past 6 months. ... Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo (#1) See all feedback. Product ratings and reviews. Learn more.
This a BRAND NEW SUPERCASE M22 4-Speed Muncie Rockcrusher Style Transmission. Each new Auto Gear transmission is built from genuine Auto Gear parts, the highest quality available. This is a BEEFY version of …
Thomas N. on Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. SALE EXTENDED!!! Michael Coons on NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. SALE EXTENDED!!! Brett Henson on Auto Gear Upgraded Ultra Case M22Z …
The M22 Rock Crusher used a gearset that features less of an angled-tooth gearing (right). Images courtesy chevelles The gear ratio of the Chevy four-speed transmission placed in any car was usually determined by …
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 from the side where your shifter linkage mounts. This is the Muncie M-22 Rockcrusher four speed. Designed for the highest performance models.
We are restoring a 72 Chevelle SS and would like to use a Muncie "Rock Crusher". Is there anyone out there that and tell me the difference between a Muncie M22W and a M22 Rock Crusher.
The Gear Box is the source for Muncie Parts like the new assembled M22 SUPER ROCK CRUSHER 4 speed kit with micro super finish or downshift case support.
The Muncie 4 Speed Transmission Taught A Generation Of Muscle Car Fans To Drive Manual ... the Bowtie brand was able to test the Muncie enough to develop a newer version that eventually hit the streets as the M22. The M22 'Rock Crusher' featured a one-inch countershaft pin bore and shot-peened gears with aggressive helix angles …
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.
Feel free to upload pictures and ask questions. Some of the best Muncie builders participate on that page. Muncie RPO Codes . Just three types of Muncie 4-speeds are available based on the RPO (regular production option) code used when a car was ordered: the M20 (standard wide-ratio), M21 (close-ratio), and M22 (heavy-duty close-ratio).
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 synonymous with high-performance cars of the era. The M22 featured straighter cut gears, providing a more aggressive gear mesh for increased strength and durability.
How to Identify Muncie 4 Speed Transmissions. The most popular question has to be that everyone thinks they have the famous "rockcrusher" M22 4 speed.
new super pro road race m22. super duty road race muncie m22 with upgraded ultra case with front and raer (thrust button), c355 forged aluminum mid plate, vented super tail housing, roller 1st gear, oil seal main drive, pro shift 18 spline sliders, hardened hubs, special shift forks, lightened main…
Muncie M22 Rock Crusher Is The Rarest 1960s Muscle Car Transmission In the 1960s, the rarest muscle car transmission was the M22 'Rock Crusher' 4-speed manual gearbox. While it is not well documented, it is estimated that between 1966 and 1974, only 500 to 1200 cars were equipped with the M22 Rock Crusher transmission, …
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