Gm Rock Crusher Transmission

  • 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

  • The 1965 Chevrolet M22 Rockcrusher Transmission: The

    Sep 15, 2010· The 1965 Chevrolet M22 Rockcrusher Transmission: The Mystical Transmission by Alan Colvin on September 15, 2010 Although all previously published data has denied or excluded the existence of the 1965 M22 transmission, this author has

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

    Jul 14, 2018· This transmission will fit all 57 thru 74 GM products and is a rare opportunity to own a virtually brand new Factory Replica of the infamous M-22 Close Ratio Rock Crusher Transmission. This transmission includes all new internal parts including a completely new gearset.

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  • 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.

  • Chevy Transmissions: Muncie 4 Speed M22 Rockcrusher

    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.

  • 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.

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

  • what is a rock crusher transmission? Yahoo Answers

    May 01, 2009· The Rock crusher was the M-22 Muncie close ratio 4 speed transmission favored in the '60's GM hot rods.Well balanced, smooth shifting and after '60 Aluminum cased capable of a lot of HP.

  • List of GM transmissions Wikipedia

    Automatic transmissions Early models. The GM Hydra-Matic was a success and installed in the majority of GM models by 1950. Through the 1950s, all makers were working on their own automatic transmission, with four more developed inside GM alone.

  • 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

  • Chevy Transmissions: Muncie 4 Speed M22 Rockcrusher

    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

  • 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.

  • M21 M22 4 Speed Muncie Manual Transmission Midwest

    Chevrolet & GMC Rock-crusher: 1966-1974: Need Stronger Parts? Midwest Transmission can Cryogenic Treat any shaft or gear. This cryo treatment will add 30% in

  • 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 has extra casting in all the known weak areas. The mid plate is aircraft grade aluminum.

  • 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.

  • Author: relicrestorerman
  • what is a rock crusher transmission? Yahoo Answers

    May 01, 2009· The Rock crusher was the M-22 Muncie close ratio 4 speed transmission favored in the '60's GM hot rods.Well balanced, smooth shifting and after '60 Aluminum cased capable of a lot of HP.

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

    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.

  • 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. The ratio of the four-speed transmission placed in any car was usually determined by the engine size and rearend axle ratio.

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

    Jul 29, 2016· GM High Tech Performance; also known as the "Rock Crusher." Another way to confirm that the transmission is original to your car is most Muncie four-speed transmissions will have a

  • 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. Home: View Cart: T56: T56 Corvette GTO CTSV: TR6060 T56 Magnum: Muncie Kits & Parts: Super T10: T10: T5: 3550 TKO

  • Muncie 4-speed transmissions Hemmings

    Other GM automatic transmissions sharing the same 27-spline output are the Turbo 350, 200-4R and 700R-4. The Turbo 400 uses a 32-spline output and the case is 3-inches longer, so it would be a more difficult swap. The TH400 yoke will work on the 1971-74 M22s however the driveshaft would have to be shortened. Aftermarket shifters are still

  • Muncie 4-Speed Identification Guide Chevy DIY

    The replacement case (GM PN 3925659) was used for all 1966– 1974 Muncies as listed in the GM AC DELCO 1978 service parts manual. It was a 3925661 casting. If you have to replace an early 7/8-inch case, a later casting is offered with the thick ears but machined for the early shaft.

  • Muncie Parts The Gear Box

    NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2399.00. No Price Muncie Master Overhaul Kit. The ultimate Master rebuild kit for Muncie transmissions. Kit includes: From $283.00 . Muncie Overhaul Kit 1966-74. Complete overhaul kit for Muncie 4 speed transmissions, 1966-1974. From $136.95 . Muncie Heavy Duty Competition Overhaul kit 66-74

  • 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.

  • 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 has extra casting in all the known weak areas. The mid plate is aircraft grade aluminum.

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

    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.

  • what is a rock crusher transmission? Yahoo Answers

    May 01, 2009· The Rock crusher was the M-22 Muncie close ratio 4 speed transmission favored in the '60's GM hot rods.Well balanced, smooth shifting and after '60 Aluminum cased capable of a lot of HP.

  • 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

  • What is a Rock Crusher transmission? Quora

    Aug 21, 2015· 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.

  • 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. The ratio of the four-speed transmission placed in any car was usually determined by the engine size and rearend axle ratio.

  • 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. Sale Extended. Last Week! Mark A Jones Deltona Florida on Auto Gear Super Case M22Z Rock Crusher 4-speed. Perfect For 2.73 to 3.42 Rear End Gears. Sale Extended. Last Week!

  • Muncie 4-Speed Identification Guide Chevy DIY

    The replacement case (GM PN 3925659) was used for all 1966– 1974 Muncies as listed in the GM AC DELCO 1978 service parts manual. It was a 3925661 casting. If you have to replace an early 7/8-inch case, a later casting is offered with the thick ears but machined for the early shaft.

  • Muncie 4-speed Transmission (Group 4.000)

    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.

  • Difference between M21 and M22 NastyZ28

    Oct 01, 2008· The difference is that the M22 has straighter cut teeth on the gears while the M21 has more angle to the gears. There should also be a code stamped on the outside of the tranny that indicates which one it originally was.

  • MANUAL STANDARD TRANSMISSION MUNCIE M20 M21 M22

    gm transmission mount universal fit for automatic or manual by richmond gear (86-0010-1) richmond gear. $44.88 $39.77 $49.99. add to cart. compare compare items. sale. muncie m20 m21 m22 sm318 & t10 gm transmission input shaft nut fits '63-'74 (wt297-90) tpd pro-line. $9

  • Magical Muncie Four-Speed Hotrod Hotline

    Having the proper geometry is a necessity. Often a hot rodder will say his transmission is grinding in fourth, but geometry is the problem. Source. Davids 4 Speeds LLC Davids4Speeds. Diagram shows the parts and basic workings of a GM