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muncie rock crusher 4 speed transmission

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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  • NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00

    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 Parts NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00. NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00.

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  • m 22 transmission the rock crusher Products

    m 22 transmission the rock crusher Products

    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! Brand New SUPERCASE M22 4-Speed ...

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  • Muncie 4 Speed Classifieds Claz.org

    Muncie 4 Speed Classifieds Claz.org

    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!

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  • 1969 Chevy M22 Close Ratio Rock Crusher Muncie 4 Speed

    1969 Chevy M22 Close Ratio Rock Crusher Muncie 4 Speed

    Seller Notes: “ Muncie M22 M-22 4 speed transmission - 0-line input, 660 case, 1” pin, all numbers in the pics - 2.20 first gear - 1.64 second, 1.28 third and 1.00 fourth - You can confirm by the numbers if it fits your application - 10 spline input, 27 spline output - Case casting is 3925660 and tail is 3857584 with correct side cover ...

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  • Muncie M22 4 Speed Rock Crusher Auto Gear $1950

    Muncie M22 4 Speed Rock Crusher Auto Gear $1950

    Sep 09, 2021 1966 m22 rock crusher muncie 4 speed - $1,900 (Biloxi) This is a super nice m22 rock crusher trans, it all rebuilt and guaranteed, has all new gears in it, the case has been bushed also. It is the close ratio trans, it a very early 66 trans, asking 1900. Call dave call dave 352two16227three ... 1966 m22 rock crusher muncie 4 speed - $1,900 ...

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  • Muncie 4 speed Hot Rod Forum

    Muncie 4 speed Hot Rod Forum

    Aug 14, 2015 M-37 Super Muncie or rock crusher Several ratios available, large input shaft (1 1/4, like Hemi 4-speed and big Top Loader), spur-cut 1st gear (increased load shock capability, makes a horrid whine , thus the nickname) and large output shaft. The only cars I recall them in were the ZL-1s. LOTS sold over the counter for racing in the ...

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  • How to Identify a Muncie Four Speed

    How to Identify a Muncie Four Speed

    Jun 22, 2016 It is easy to determine an early Muncie four-speed transmission side cover from the later models by the way the transmission shifter arms are attached. The 1964 through 1968 Muncie side covers had ...

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  • Muncie 4 Speed Transmissions and Parts

    Muncie 4 Speed Transmissions and Parts

    Muncie 4 Speed Transmissions and Parts. Muncie Transmission is back! General Motors stopped installing Muncie 4 speeds in 1974. Complete units were able to be purchased from GM until the late 1970's. Parts trickled out of inventory by the late 1980's. With the quality of used Muncie transmissions getting worse in the last 10 years, the idea ...

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  • 1969 1973 Muncie 4 Speed Transmission Rockcrusher M 22

    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.

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  • The Muncie 4 Speed Transmission Taught A Generation Of

    The Muncie 4 Speed Transmission Taught A Generation Of

    Jun 09, 2021 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).

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  • Muncie four speeds Hemmings

    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-duty version of the 2.20:1 ratio M21 four-speed.

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  • Muncie 4 Speed Transmissions

    Muncie 4 Speed Transmissions

    Combined with high impact alloy gears this 4 speed really pushed the limits of it's aluminum case in drag race applications. Although the gears are not spur gears ( completely straight ) they still produced a fair amount of gear noise thus the Rockcrusher name. These 4 speeds sound like a blower drive.

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  • Muncie M22 4 Speed Rock Crusher Gear Whine YouTube

    Muncie M22 4 Speed Rock Crusher Gear Whine YouTube

    Sep 03, 2015 A video with better audio of the nostalgic sound of a Muncie M22 (Rock Crusher) transmission at work in a 1966 Chevrolet Chevelle.

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  • Muncie M 22 Rock Crusher Four Speed Transmission RARE

    Muncie M 22 Rock Crusher Four Speed Transmission RARE

    Mar 03, 2018 Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo | eBay If you are replacing a 27 spline Muncie M-20 or 21 your existing shifter will swap over. Mystery Muncie First Gear noise eliminated. This is about as close to …

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  • Muncie Super Duty M23 Super Case 4 speed Road or Drag

    Muncie Super Duty M23 Super Case 4 speed Road or Drag

    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 …

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