I also have a M21 with same close ratio as m22 but with two rings on front spline. @@@@@ M22 specs 10PP229308 stamp on casting 3925661 casting ... " 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 compared to buying a retrofit kitted TKX for ...
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The most well known Muncie transmissions are the M20(wide ratio), M21(close ratio), and the M22(rock crusher). Although not mentioned much, there was also an M23 transmission that was used, beginning in 1970. …
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However, the Rock Crusher was only equipped in cars that had high-performance big blocks, including the Corvette, Camaro, Firebird and Chevelle. Thanks to the similarities between the M20, M21 and M22 transmissions, you can use a combination of Muncie 4-speed transmission parts to build the transmission you want for your project car.
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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. Another misconception is if you have a drain plug you have a M22.
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Upon getting into the restoration I noticed he had an M21 bellhousing attached to a muncie 4 speed. i called him and asked him if he knew what kind of Muncie it was, he steadfastly said it was an M22 Rock Crusher. Now,everyone thinks they have a Rock Crusher...One of my buddies is a self proclaimed "expert".
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Muncie M22 Rock Crusher Second Gear $ 115.00 Add to cart; Muncie 4 Speed O-Ring Speedometer Housing $ 1.00 Add to cart; Muncie M20/M21/M22 Rear Reverse Idler Gear $ 59.00 Add to cart; Technical Resources. Competition Plus Catalog; Installation Instructions for Hurst Shifters; Muncie Identification;
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ORIGINALLY, in the beginning of the Muncie evolution, there was the M20(wide ratio) and the M21(close ratio). ... ONLY AND ALL M22 MUNCIES ARE CALLED ROCK CRUSHER! For folks who may not be familiar with the …
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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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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 …
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You have a choice of a original completely rebuilt GM Muncie M20, M21 or M22 Rock Crusher transmission. With this new kit you also get all the hardware needed to get the job done right the first time. Correct bolts will include head markings like original. The transmission is professionally rebuilt and guaranteed for 1 year.
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My dad runs a M22 rock crusher in his 66 Vette. The originals were substantially stronger than the M21, but the case was a weak point. M22's are now available with beefed up cases and they are very strong!! I know that is what my dad is running and I can find out where he purchased his. The M22's make a cool whine sound due to the straight cut ...
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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 assemblies to Chevrolet's 1965 transmission identification codes, I found a perfect match. ... All 1963-65 M20 and M21 transmission used a 7/8″ countergear pin in all assemblies.
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Is this a real M22 Rock Crusher? ... M21, and M22 Muncies and the 1970 M22 had. A M20 with the 32 spline output and 26 spline input is a desireable Muncie as it was stronger than earlier Muncie M20s. Be aware that they are also 3/4 …
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How To Rebuild Muncie 4-Speed Manual Transmission M20 M21 M22 Rock Crusher. Opens in a new window or tab. Brand New. 5.0 out of 5 stars. 43 product ratings - How To Rebuild Muncie 4-Speed Manual Transmission M20 M21 M22 Rock Crusher. $27.40. Buy It Now +$5.95 delivery. Free returns. 4 watchers.
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You have a choice of a original completely rebuilt GM Muncie M20, M21 or M22 Rock Crusher transmission. With this new kit you also get all the hardware needed to get the job done right the first time. Correct bolts will include head markings like original. The transmission is professionally rebuilt and guaranteed for 1 year.
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Information Exchange. Bench Racing. M-22 "rock crusher"
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Rick, I'm not the expert on these here, DZauto is but here it goes. The M22 is the "rockcrusher" tranny. It's a bit more heavy duty than the M21 and much rarer. It's called a rockcrusher due to it straighter cut gears which whine ( and are stronger ). The M21 is a standard Muncie 4 speed. They both have the same ratios beginning with a 2.20 1st.
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M21's are inherently weak, but the M22 aka ( rock crusher ) is the beefed up version of a close ratio m21, the M22's were designed to handle the higher torque and HP of GM's big block engines produced through the mid to late sixties, the super T10 was produced from 74 to 82, they have a 21 spline input shaft, hardened gears and a hardened cases ...
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Because M21 is just a code, later Corvettes or other 4-speed cars didn't have Muncies; those equipped with a Super T10 4-speed could have an M21 or an M20 code. Window and tank sticker resources reveal that there was never an M21 …
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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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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 Gear Box Transmissions. Muncie-Tremec-Saginaw-TKO-Top Loader-Richmond. Home: View Cart: Muncie Kits & Parts: T56: T56 Corvette GTO CTSV: TR6060 / T56 Magnum: T10: Super T10: TKX: T5:
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There are two ways you can tell the difference between the M21 and the Rock Crusher. The M22 has 27 teeth on the countershaft gear, while the M20 and M21 have 29 teeth. M20 …
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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 incorrect transmission, your car may not function properly. You can identify several unique signs that identify an M-22 "Rock Crusher," even if it does ...
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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 …
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How To Rebuild Muncie 4-Speed Manual Transmission M20 M21 M22 Rock Crusher. Opens in a new window or tab. Brand New. 5.0 out of 5 stars. 43 product ratings - How To Rebuild Muncie 4-Speed Manual Transmission M20 M21 M22 Rock Crusher. $27.40. Buy It Now +$5.95 delivery in 2-4 days. Free returns. 4 watchers.
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Although some claim that the M23 is a 'rock crusher', it is indicated that this box was assembled in both wide and close ratio components and also with straight cut gears common to the rock crusher (M22) transmission. Looks like you have a second design-feb. 28th, 1968, M20 or M21. Definitely not a rock crusher(no straight cut gears).
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Hurry before it's gone. 1 person is watching this item. US $150.00USPS Ground Advantage®. Delivery time is estimated using our proprietary method which is based on the …
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The most popular question has to be that everyone thinks they have the famous "rockcrusher" M22 4 speed. This had the same gear ratios as the M21 but with a heavy duty gearset. The reason you may ask? Well it wasn't designed so that …
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Muncie M22 Rock Crusher Is The Rarest 1960s Muscle Car Transmission ... The key difference between the Muncie M20 and M21 gearboxes was that the M20 was the wide-ratio model, while the M21 was the ...
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NEW Auto Gear Upgraded Ultra Case Muncie Heavy Duty M20 or M21 4-Speed. Camaro, Corvette, Chevelle, Nova. 2025 Spring SALE!!! ... We also offer muncie rebuild kits, racing parts and m22 rock crusher transmissions. ×. Home; About; FAQs; Contact; Recent Comments. Randall D Resler II on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed ...
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Stone Crusher-sold by certified Suppliers,such as Jaw / Cone / Impact / Mobile Crusher,etc.
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