The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's big-blocks in the mid-1960s. The M20 and M21 transmissions produced from 1963-'74 are easy to identify in both wide- and …
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I was planning on getting a muncie rock crusher for my 68 cause ive heard theyre awesome trannies. But lately ive been reading that the tremecs are pretty good. ... I just had an Autogear M22 built and like it. However, that overdirve would be nice for close to the same $. The other thing to consider is the first gear ratio coupled with your ...
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Muncie M22 4 Speed Transmission, rock crusher heavy duty with all new gears, close ratio 2.20 1st gear, remanufactured with attention to detail and professional assembly, …
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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 …
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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 …
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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! The front bearing is a "SEALED" bearing, and slightly thicker than the original …
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I had a 71 GTO with a M22 "rock crusher". This was an absolutely stout transmission. Had a distinctive "whine" due to the slanted gears. Click to expand... M22 had straight cut gears, all other Muncies had helical cut gears. The straight cut gears gave the M22 it's different sound. Other Muncies were quite compared to the M22.
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The only way to tell an M22 is by looking at the gear set. You cannot go by the old method of "it has a drain plug so it's an M22". Also the input shaft cannot be used as a guide because there are various firms now …
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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.
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Finally, a show car transmission worthy of your SHOW CAR OR STREET VEHICLE. The M22! This iconic transmission is based upon the infamous "ROCK CRUSHER" Transmission made famous in the 60`S AND 70`S by being installed in the L-88`S, BIG BLOCK 425 HP Factory Muscle Cars and HOT RODS of the past.
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I explain this in detail, because like so many BS stories that have occurred over the years, the M22//Rock Crusher is one of them that continues to be perpetuated by "armchair" experts. Originally, the M22 was ONLY a close …
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The M22 was eventually dubbed the "Rock Crusher". It is a common misconception that all Muncie transmissions are "Rock Crushers", but it is only the M22 that deserves that name. The M20 and M21 were both release in 1963, but it wasn't until 1965 that the M22 hit the market. The M22 was created for the Corvette Grand Sport racing program.
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The M22 'Rock Crusher' featured a one-inch countershaft pin bore and shot-peened gears with aggressive helix angles that reduced heat and stress but also increased noise, leading to the nickname as the transmissions rattled their way down the road.
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Muncie M22 Vs M22 Rock Crusher: Differences Explained . The M22 used the same close ratios as the M21 gearbox. However, compared to the M22, the M22 Rock Crusher from 1966 was a high-performance ...
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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.
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STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR ULTRA CASE With The Strongest M22z WIDE OR CLOSE RATIO 4 SPEED TRANSMISSION. A GREAT HEAVY DUTY ROCK-CRUSHER FOR YOUR CAMARO, NOVA, CHEVELLE, CORVETTE, GTO,442. THE MAIN CASE IS THE STRONGEST MADE with fill and drain plugs. C355 Forged Aluminum …
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In the beginning, the M-22 was the Heavy Duty Muncie, and it was available ONLY in the close ratio version (2.20:1 first gear ratio). The primary difference between the regular …
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We have a large inventory of rebuilt M21 & M22 Manual Transmissions plus transmission parts. Our factory rebuilt re-manufactured transmissions are dyno tested before leaving the factory, ensuring the highest quality, We offer a no hassle 12 month warranty, performance guaranteed. ... Rebuilt Transmission M22 1966-1974 Rock Crusher MTGM038.
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Across the top of the page are the words "First Build 4/15/65 – 1st Shipment 4/19/65, recap of M22 (Rock Crusher) Trans." By comparing these M22 transmission …
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Ultra rare Factory M-22 "Rock Crusher" 4 Speed! (yes, it is really an M-22 car, one of very, very few built in 1968) ... and highest quality L78/M22 Camaros on earth this is your chance! Serious buyers please contact me for full details or to arrange an in-person inspection. colin@colinsclassicauto-Colin . Year: 2022 Drivetrain: FWD.
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This bumbed me out since I had previously read that this was an indication that it was a Saginaw not a Muncie. It does have a 7 bolt side cover. Doe this mean it's still an M22 but just manufactured at the Saginaw assembly plant or it's not an M22 "Rock Crusher Transmission". I am just learning !
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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). (The M does not …
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Muncie M22 Rock Crusher 4 Speed 2.20 Close Ratio Transmission Driver Speedo. Opens in a new window or tab. Remanufactured. $2,400.00. Buy It Now +$150.00 delivery. 40 watchers. Sponsored. apollo_performance (1,317) . 1968-70 Muncie M22 Rock Crusher 4 Speed,new main case. Professional Built. Opens in a new window or tab.
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the motor was decked when rebuilt but still retains its original partial vin stamp at oil boss there is a picture in the lisiting. it also retains its numbers matching muncie m22 rock crusher 4-speed transmission and its original 12 bolt posi rear-end with factory 4.10 gears.
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C3 General - M22 Rock Crusher - Just bought a 1968 (originally was 427/435..currently has a CE replacement block from 69)) and I believe it has a M22 vice M21. Intent at some point in the near future is to crawl under and check numbers/code. I know it has the factory 411 rear end (Code FB) so that is the first reason...
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"Spending" 3000$ on a bolt on, period correct, grin inducing almighty and mythical transmission that is the great Muncie M22 Rock Crusher makes more sense for many …
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This is the current Muncie M22. Your can see that the layout of the geartrain is identical to the ST10's. All gears and synchronizers are in the same position. Notice how the angle of the M22 gears is much straighter than on the ST10. …
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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.
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I currently have an M22 Rock crusher in my '56 Chevy pickup, and have another M22 that was rebuilt about 6 years ago by my father but never used. I also have what I believe is an M21, but I'm not certain. The M22's are both close ratio and the M21 is a wide ratio...again from what I was told years ago.
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