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  • Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher Style ...

    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.

  • M22 Rock Crusher

    Muncie M22 "Rock Crusher 4 SPEEDS FROM 1965 TO 1974: This page is devoted to OEM Complete units; New aftermarket units and OEM parts and NOS parts. We have rebuild kits in stock and ready for shipment. Email us with your requirements and we will assist you in completing your M22 rebuild or providing you with a complete trans.

  • 1969 - 1973 Muncie 4 Speed Transmission Rockcrusher M-22

    GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1969 - 1973 model Firebirds and Trans Ams. This one will have the holes on the side where a bolt will secure your shifter linkage levers. This is the M-22 Rockcrusher four speed. Designed for the highest performance.

  • Muncie M22 4-Speed-Rock Crusher Transmission - FRESH ...

    Nov 28, 2016· 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

  • Guide to Muncie M20, M21, and M22 Four-Speed Transmissions

    Aug 03, 2018· 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

  • Muncie Parts - The Gear Box

    NEW Upgraded Muncie M20 4 speed $2198.00. No Price NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00. No Price Muncie Overhaul Kit. Complete overhaul kit for Muncie 4 speed transmissions

  • How to Identify a Muncie Four Speed - Hot Rod

    Jul 05, 2016· I guess I am looking for a Muncie transmission guide for dummies. ... (M20) and the close-ratio (M21). There also was a second, heavy-duty close-ratio version: the "Rock Crusher

  • Muncie 4-speed Transmission (Group 4.000)

    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 strong-er helical gears in the M22.

  • 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.

  • YEARONE Blog Updates: GM Muncie 4-Speed Decoding

    Dec 09, 2009· 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.

  • GM Muncie 4-Speed Decoding : Drivin' It Home

    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.

  • The Mighty & Majestic Muncie 4 Speed Transmission - Wilson ...

    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 wasnt until 1965 that the M22 hit the market. The M22 was created for the Corvette Grand Sport racing program.

  • Guide to Muncie M20, M21, and M22 Four-Speed Transmissions

    Aug 07, 2018· 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

  • Muncie M21/M22 average price? | Team Chevelle

    Oct 09, 2009· The transmission would make the same rock crusher noise, but I would have a much tougher transmission. 1966 Charger (383, 727 Torqueflight) 1970

  • How to Identify a M22 Rock Crusher | It Still Runs

    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

  • Chevy Muncie M20, M21 & M22 4-Speed Transmission Parts

    This design creates the distinctive low-RPM rattle and high-RPM whine the Rock Crusher is known for. Gear ratios are the same as the close-ratio M21. The Muncie four-speed was used in a wide range of GM products through the 60s and 70s. However, the Rock Crusher was only equipped in cars that had high-performance big blocks, including the ...

  • Magical Muncie Four-Speed | Hotrod Hotline

    A Muncie differs from a Saginaw transmission in that its reverse lever is in the tail housing, not the side cover. The difference between a Muncie and a Borg-Warner is the Muncies 7-bolt side cover (two less than Borg-Warner units). ... The M22 is called the Rock Crusher. Dump the Rock Crusher, hot rodders say. People think all Muncie ...

  • Muncie M22 4 Speed Rock Crusher Auto Gear - $1950 ...

    68-70 muncie M22 rock crusher rebuilt - $2475 (Canfield) This is a very rare 660 m22 rock crusher muncie, it is a service replacement transmission unstamped, no vin, it will be correct for 68 to 70, all rebuilt and guaranteed, all new straight cut gears, 220 ratio, asking 2475. Also have a 69 m20 for 1100. And a 311 Saginaw trans 550. Call ...

  • How to Identify a Muncie Four Speed: Build Date Codes ...

    Jul 29, 2016· Last time we talked about how to distinguish a Muncie four-speed transmission from a Saginaw or BorgWarner and the different types of Muncie transmissions, including the

  • GENERAL MOTORS MUNCIE 4-SPEED MANUAL

    GENERAL MOTORS MUNCIE FOUR SPEED 10-1-01 10 C8 Idler Gear (Front) L18-s27T: except M22 3831762 WT297-10 L18-s27T: M22 Rock Crusher 3879997 WT297-10B C9 Idler Gear Assy (Rear) L17-27T 3831764 AWT297-10A C10 Idler Gear (Rear) Thrust Washer all 3774909 3774909 C11 Idler Shaft all 3831761 WT297-35 C12 Idler Shaft Lockpin all 590832 590832

  • NEW Auto Gear Super Case Muncie M22 4-Speed Rock-Crusher ...

    Recent Comments. steve cooke on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. SUMMER SALE ON NOW!!! Mark A Jones Deltona Florida on Auto Gear Super Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to

  • How to Rebuild a Muncie Four-Speed Transmission - Rock The ...

    How to Rebuild a Muncie Four-Speed Transmission - Rock The Rock Crusher Car Model: Chevrolet Corvette While we would have loved to show you each and every step in the rebuild process, there are just too many to show within the confines of this article, so we're going to cover the key parts and show you what to look for during disassembly and ...

  • 1967 - 1968 Camaro 4 Speed Muncie Transmission Conversion ...

    NEW, Complete 67 - 68 Camaro Muncie 4 Speed Conversion Kit now available! This kit will get you basically everything needed to convert a automatic 1967 - 1968 Camaro into a four speed machine! You have a choice of a original completely rebuilt GM Muncie M20, M21 or M22 Rock Crusher transmission.

  • M-22 Rock Crusher 4-Speed Transmissions by JetBoatBill

    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 Muncie's ...

  • Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher Style ...

    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

  • Muncie four-speeds | Hemmings

    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

  • What is a Rock Crusher transmission? - Quora

    It's a GM Muncie M22 four speed, used in high performance applications from 1965 to 1972. They had a lower helix angle in the gears and had a noticeable whine that very few other transmissions had. If you were running a GM hotrod, that was the man...

  • The 1965 Chevrolet M22 Rockcrusher Transmission: The ...

    Sep 15, 2010· 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 Chevrolets 1965 transmission identification codes, I found a perfect match.

  • Guide to Muncie M20, M21, and M22 Four-Speed Transmissions

    Aug 08, 2018· 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

  • 1970 CHEVROLET CHEVELLE 454CI LS6 MUNCIE ROCK CRUSHER ...

    Correct 1970 4-bolt 454/450hp block, M22 4-speed Rock Crusher Muncie transmission and original LS6 CRW 410 12-bolt posi-traction rear end. It also has a 6,500 rpm redline tachometer, bucket seats, console, ZL2 cowl-induction hood and original 14" SS Rally wheels with wide-oval tires.

  • Muncie M22 4 Speed Rock Crusher Gear Set - Fontanero Heavy ...

    M22 Rock Crusher 4 Speed Ifereutlingende. Muncie 4 speed rock crusher gear ratio. 22 rock crusher 4 gear trans co uncie m22 rock crusher 4 speeds from 1965 to 1974 this page is devoted to oem complete units new aftermarket units and oem parts and nos parts 220 first gear or wide ratio 252 first gear the wide ratio m22 gear set is base View All Muncie m22 rockcrusher transmission

  • NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00

    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

  • Muncie 4-speed Transmissions | Hemmings

    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.

  • Muncie Identification | The H.A.M.B.

    Feb 21, 2010· 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. The M23 is recognized by a 26-spline(fine) input shaft and a large output shaft that requires a T-400 driveshaft yoke.

  • Muncie 4-speed Transmission (Group 4.000)

    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

  • Muncie M21 and M22 Manual Transmission GM Overhaul Kit ...

    Information and parts are provide for the following Transmission: Muncie M21 / M22 4 Speed (RWD), an illustrated parts drawing for the M21 is provided. ... 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 ...

  • muncie m22 rock crusher for sale | eBay

    1964 & Up M-22 Rock Crusher Muncie Transmission Fine (26/32) 3925661 Case. Brand New. $2,795.00. Buy It Now. Free shipping. Last one. 34 watchers. 3 S A W 5 p o n s 5 S o r B e 5 D 1 d G. Watch. Muncie M22 4 Speed Rock Crusher Gear Kit - 10 Spline Input Cluster 1st 2nd 3rd. Brand New. $499.00. Buy It Now. Free shipping.

  • Muncie 4-speed - Chevelle Stuff

    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.

  • Muncie M22 Rockcrusher Transmission For Sale

    Performance Built Muncie M22 Rock Crusher 4 Speed Transmission. This unit has been rebuilt at our state of the art facility. We have carefully engineered a process that allows us to bring you a product we can stand behind. This is a direct replacement for the following Chevrolet ,Oldsmobile, Buick, and Pontiac vehicles. Compatible Vehicles ...