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Lorena, TX. This is a 1970-1974 Muncie 4-speed transmission with casting number 3925661. I have had it in my 1978 Camaro Z-28 for over 20 years but am changing to a T56 transmission. It is a wonderful transmission that can handle a ton of horsepower and comes with an inline linkage, Centerforce Dual-Friction clutch, and bellhousing.


The M22 is called the Rock Crusher. People think all Muncie four-speeds are Rock Crushers, but they're not. The M20 and M21 came out about the same time in 1963, but the M22 didn't come out until 1965. It was developed for the Corvette Grand Sport racing program. Only about 50 early units were made.


· Muncie M22 4-Speed-Rock Crusher Transmission - FRESH Muncie M22 Rock Crusher 4 Speed Transmission 2.20 1st Gear Close Ratio 26/32 Spline Main Case 3925661 Tail Housing 3978764 Side Cover 3952648 P.1B12C VIN 12894 Transmission has been completely restored inside and out!


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 ...


Muncie also had a second close-ratio transmission designated M22 and often referred to as the "rock-crusher," which was used behind the highest-performance engines and in Corvettes, the M22 is a highly sought-after performance transmission. It is the heavy-duty version of the 2.20:1 ratio M21 four-speed.


12947 rock crusher munchie. 1969 Camaro 4 Speed Muncie Transmission Conversion Kit 1969 Camaro 4 Speed Muncie Transmission Conversion Kit Choice of M20 M21 or M22 Rock Crusher Alternative Views Our Price 3 279 95 Sale Price 3 179 95 You have a choice of a original completely rebuilt GM Muncie M20 M21 or M22 Rock Crusher transmission


For All Your Muncie Needs . M20-M21-M22 & New Design M22 Wide Ratio. New "M21" In Case Overdrive. Repairs, Rebuilds. New & Used Parts . Bellhousings "New Italian Made Gears" (best aftermarket gears in the world) Complete Transmission's In Stock. Exchange Transmission's Available For Long Distance Customer's. Rob Barnett. Bradford Ontario ...


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 ...


"Dump the Rock Crusher," hot rodders say. People think all Muncie four-speeds are Rock Crushers, but they're not. Nowadays there are custom gear ratios and set ups, including M21 wide-ratio and M22 wide-ratio units. You can pretty …


muncie m22 "rock crusher" ultra show car quality transmission. finally a show car transmission worthy of your ultimate show car 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 ...


This sheet lists by model year, each M22 assembly shipped from Muncie with accumulative totals across the bottom of the page. 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."


Muncie also had a second close-ratio transmission coded M22 and known as the "rock crusher," which was used behind performance big-block engines and in some Corvettes. These M22 units are highly sought-after for performance applications. The term "rock crusher" refers to the noise made by the meshing of the stronger helical gears in the M22.


1967 Chevrolet Nova 4 - Speed Muncie "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.


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.


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.


Recent Comments. Joe Gio on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. FALL SALE ON NOW!!! steve cooke on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. FALL SALE ON NOW!!! Mark A Jones Deltona Florida on Auto Gear Super Case M22Z Rock Crusher 4-speed. Perfect Performance …


Purchase 1969 M-22 4-speed Muncie ROCKCRUSHER Transmission with ALL NEW GEARS in Whitney, Texas, United States, for US $1,995.00


Paul Cangialosi and Sale Arena from 5Speeds.com install a new Muncie M22-Z transmission in Sal's 1962 Corvette. These transmissions are designed by Autogear ...


Click Image For More Details. LOOK ON SALE Muncie 4 Speed Transmission M20 OR M21 ALL NEW INSIDE $2899.00 OUTRIGHT or $2499.00 with Muncie CORE exchange. Part No: RSGM20/21-VPU. Price: $3,499.99. Sale Price: $2,899.99. Click Image For More Details. Muncie 4 Speed M20 10 Spline Input 27 Spline Output ALL NUMBERS CORRECT Corvette Camaro …


By the time the Muncie was in its final phase of production (1971-1974) it also gained a 32 spline output shaft in place of the original 27 spline unit. Wide, Close, or Rock Crusher Initially there were two specific Muncie transmissions available: the M20 wide-ratio (2.56:1 first gear) and the M21 close-ratio (2.20:1 first gear).


Muncie M22 Gear Set 2.20 Ratio Rock Crusher 10 Spline Input Fits M20 M21 4 Speed. Brand New. C $693.39. Top Rated Seller. Top Rated Seller. Buy It Now. +C $96.43 shipping estimate. from United States.


M-22 "Rock Crusher" Identification. The M-22 close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. The M-22 was only produced in a close-ratio version, so it will not appear on models with high rear-axle ratios (3.55 or lower numerically) unless someone has changed it.


Muncie "rock crusher" vs. TKO 600 Now that my TKO 600 is all installed and functioning flawlessly, people are telling me I should have installed a Muncie M22 in my car instead of a TKO 600? I just finished the project, and already I have received this criticism from like 4 different gearheads.


Muncie 4-speeds have varying helix angles in the gearsets. Typically, the M20/M21 gearsets have a first-gear helix angle of 26.4 degrees and an input shaft angle of 39 degrees. The reduction in the angle with the M22 is quite substantial. The M22 first gear has an angle of 14.5 degrees and the input shaft is 24.2 degrees.


Why should you purchase a new Muncie 4 Speed from us? Paul Cangialosi has been involved in the manual transmission parts and rebuilding business since 1981. His BOOK on building and modifying manual transmissions is an Amazon best seller. His new MUNCIE BOOK, due out in October of 2014, explores Muncie rebuilding, performance tips, and history ...


Find many great new & used options and get the best deals for 1971 M22 P1B26C Rock Crusher Muncie 4 Speed Trans Case 3925661 & Pin SUPER NICE at the best online prices at eBay! Free shipping for many products!


Recent Comments. Joe Gio on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. FALL SALE ON NOW!!! steve cooke on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. FALL SALE ON NOW!!! Mark A Jones Deltona Florida on Auto Gear Super Case M22Z Rock Crusher 4-speed. Perfect Performance …


Recent Comments. Joe Gio on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. FALL SALE ON NOW!!! steve cooke on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. FALL SALE ON NOW!!! Mark A Jones Deltona Florida on Auto Gear Super Case M22Z Rock Crusher 4-speed. Perfect Performance …


Code: New Muncie M22 2.20 close ratio or 2.52 wide ratio Rockcrusher gear set is availabe with either a 10 or 26 spline input. Close ratio 26 spline gear sets available in Italian or Korean made. You must select whether you need a wide or close ratio & which input spline count, 10 or 26. Fits all Muncie applications with 1" countershaft pin ...


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Muncie 4 Speed Transmissions

Identifying Muncie 4 Speeds III by Paul Cangialosi 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 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.


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.


The Muncie four-speed was produced in two ratios: the wide ratio (M20) and the close-ratio (M21). That being said, there was a second, close-ratio version (M22) that was developed to survive duty behind engines with a higher torque output, and was known as the "Rock Crusher."


Muncie M22 Rock Crusher 4 speed. Jump to Latest Follow 1 - 7 of 7 Posts. T. Turkey · Registered. Joined Oct 24, 2001 · 22 Posts . Discussion Starter · #1 · Feb 22, 2003. Only show this user ...