M21 Rock Crusher Saginaw 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 produced from 1963-'74 are easy to identify in both...

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  • m21 rock crusher saginaw transmission

    Guide to Muncie M20, M21, and M22 Four-Speed TransmissionsAug 08, 2018The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's big-bl m21 rock crusher saginaw transmission

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  • Muncie 4-Speed: The Complete History - Chevy DIY

    The early Grand Sports used a special heavy-duty version of the M21 close-ratio transmission. These special units evolved into what is called the M22 today. According to research by Alan Colvin (author of the Chev­rolet by the Numbers books), 57 …

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  • m rock crusher transmission identification

    m rock crusher saginaw transmission. M21 Rock Crusher Saginaw Transmission - zanati. m21 rock crusher saginaw transmission art derock crusher was the m21 gearbox . confused with the saginaw or borg . high performance models.the choice of transmission was dictated by the engine . chat en vivo chevrolet chevy manual transmission how to identify a m22 rock crusher | it still runsan m 22 rock ...

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  • 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

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  • 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 produced from 1963-'74 are easy to identify in both...

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  • Camaro Transmission Information & Restoration

    With the exception of the Saginaw transmission and the TH200, these transmissions tend to be overbuilt for the stock power capacity of the Camaro. In my opinion, the T10 is stronger than the M22 "rock-crusher" muncie.

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

    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. The mid plate is aircraft grade aluminum.

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  • Muncie 4 Speed Transmissions

    The dead 2.20 first gear ratio which is the same in the M21 is not that good for off the line acceleration. You would need at least a 4.56 rear end gear to compensate for the dead first gear. That was OK when gas was cheap in 1967 and you did not mind pulling 3000 RPM at 50 MPH while going to work.

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  • Muncie M-22 Rock Crusher Four Speed Transmission - ALL New ...

    Feb 12, 2021· For sale is a Factory Replica of the Close Ratio Muncie Rock Crusher Four Speed Transmission typically used in High Performance 1965 to 1974 Corvette`s, Camaros, Chevelles, Nova`s, El Camino`s, Impala`s, Oldsmobiles and Pontiacs.. Also included are Hand Fitted Synchronizer Sliders and Hubs. The hand fitted sliders/hubs improves up and down …

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  • Muncie Trans - Garage

    Large assortment of Muncie and T-10 transmissions on the shelf ready to be shipped : We stock one of the largest inventories on the West Coast ! In shop rebuilds of all Muncie , T-10, AMC T-10 & Saginaw transmissions. All cases are cleaned to return them to their original appearance. They are inspected and repaired if neccessary.

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  • 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 …

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  • finding a 4 speed muncie rock crusher

    The 2.20:1 ratio is commonly designated as the Muncie M21 transmission. The 2.56:1 ratio is commonly referred to as the M20. 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.

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  • M21 vs M22 | Team Camaro Tech

    Oct 29, 2001· What is the difference between an M21 and M22? The rock crusher gears alloy content is different and the different gear angles make the noise. The ratios are the same for both. Is there a difference in the synchros or anything else to make an M22 stronger? I don't know anyone who has broken any M21 gears.

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  • MANUAL / STANDARD TRANSMISSION - MUNCIE M20 M21 M22 ...

    th350 , 2-speed powerglide automatic, super t10, muncie m20 m21 m22, saginaw, & t5 manual transmission speedometer gear 18t brown fits gm (3987918)(8g-18a) …

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  • How to Identify a Muncie Four Speed - Hot Rod

    Jul 05, 2016· There also was a second, heavy-duty close-ratio version: the "Rock Crusher" (M22) that was offered on some of the high-performance big-block models, starting with the …

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  • 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 Chevrolet’s 1965 transmission identification codes, I found a perfect match.

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  • LOOK ON SALE Muncie 4 Speed Transmission M20 OR M21 ALL ...

    LOOK ON SALE Muncie 4 Speed Transmission M20 OR M21 ALL NEW INSIDE $2189.00 OUTRIGHT or $1999.00 with Muncie CORE exchange Complete Muncie Transmission Units << Back. Note: All Muncie 4 Speeds are Built To Order, Call Us With Your Application for Current Build Time and Delivery Date.

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  • M21 Rock Crusher

    M21 Rock Crusher. M21 rock crusher saginaw transmission m22 rock crusher 4speed transmissions by jetboatbill new design muncie m22 rock crusher close ratio 4 speed this is the m22 transmission that gm could not build newly designed stateoftheart muncie front case from auto. Learn More

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  • Muncie 4-speed

    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.

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

    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 transmissions have two grooves on the input shaft, M21 transmissions have one groove, and M22 transmissions have no grooves.

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  • Magical Muncie Four-Speed | Hotrod Hotline

    There are three basic types of Muncies: M20, M21 and M22. 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 Muncie’s 7-bolt side cover (two less than Borg-Warner units).

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  • Muncie M-22 Rock Crusher Four Speed Transmission - ALL New ...

    Feb 12, 2021· For sale is a Factory Replica of the Close Ratio Muncie Rock Crusher Four Speed Transmission typically used in High Performance 1965 to 1974 Corvette`s, Camaros, Chevelles, Nova`s, El Camino`s, Impala`s, Oldsmobiles and Pontiacs.. Also included are Hand Fitted Synchronizer Sliders and Hubs. The hand fitted sliders/hubs improves up and down shifting quality through all RPM ranges.

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  • Synchromesh and Muncie 4-Speed Transmission

    An M-22 holds up well. The downside is it tends to make noise. It will rattle at low rpms and whine at high rpms. 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.

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  • M21 Muncie 4 speed 68-70 transmission $650 and a mopar 8 3 ...

    68-70 Corvette m22 rock crusher muncie - $2,500 (Louisville) 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.

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  • Difference between M21 and M22 | NastyZ28.com

    Oct 01, 2008· Gary S: I think you have it backwards. The M22's gear teeth have more angle cut into them than a M20 or M21. The steeper the angle, the wider the tooth is so in theory, the M22 has the widest teeth and therefore should be a stronger transmission.

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  • muncie 4 speed transmission for sale | eBay

    Related: muncie 4 speed transmission m22 saginaw 4 speed transmission muncie 4 speed transmission parts muncie 4 speed transmission m21 borg warner t-10 borg warner super t10 muncie 4 speed transmission m20 hurst shifter muncie 4 speed shifter muncie 4 speed transmission case muncie 4 speed transmission linkage muncie m22

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  • M21 M22 4 Speed Muncie Manual Transmission - Midwest ...

    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. The reverse gears are helical cut …

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  • List of GM transmissions - Wikipedia

    Saginaw M26/27 transmission — 3 and 4-speed longitudinal light duty (less than 300 hp wide ratio manual transmission made by GM at their Saginaw, Michigan factory Muncie M62/M64 — 3-speed longitudinal transmission made by GM

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  • Muncie m20 vs M21 | Hot Rod Forum

    Sep 09, 2014· M20 has weak internals and case but ok for street and chirping street tires, the M21 is a better choice for muscle on the street and a little weekend drag racing but the case is week Ive sheared the case ears off and twisted off tail shafts when running wrinkle wall slicks , the M22 (the rock crusher as we racers called them) are designed to take abuse from high HP …

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  • Muncie 4-speed Transmissions | Hemmings

    The 2.20:1 ratio first gear is usually referred to as the Muncie M21 transmission; based on GM's production codes. The 2.56:1 ratio is referred to as the M20. 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.

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  • Identify General Motors' Four-Speed Transmissions

    Jun 13, 2017· The M20 and M21 used a gearset with a more angled tooth design on each gear (left). The M22 Rock Crusher used a gearset that features less of an angled-tooth gearing (right). Images courtesy chevelles.com. The ratio of the four-speed transmission placed in any car was usually determined by the engine size and rearend axle ratio.

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  • muncie m21 | eBay

    Muncie M22 Gear Set 2.20 Ratio Rock Crusher 10 Spline Input Fits M20 M21 4 Speed. Brand New. C $570.75. Top Rated Seller Top Rated Seller. Buy It Now. From United States +C $104.90 shipping estimate ... 1 product rating - Fits GM Chevy Muncie M20 M21 Transmission 1st First Gear 36 Teeth. C $79.98. From United States. Buy It Now. Muncie M20 M21 ...

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