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muncie m transmission why is it called a rock crusher

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.

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Muncie four-speeds Hemmings

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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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

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what is a rock crusher transmission? Yahoo Answers

May 01, 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.

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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.

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Magical Muncie Four-Speed Hotrod Hotline

An M-22 holds up well. The downside is that it tends to make noise. It will rattle at low rpms and whine at higher rpms. The M22 is called the Rock Crusher. “Dump the Rock Crusher,” hot rodders say. People think all Muncie four-speeds are Rock Crushers, but they’re not.

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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 strong-er helical gears in the M22.

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Ok, who calls a Toploader 4-speed a "rock crusher

Oct 14, 2004· Muncie M22 Rock Crushers. Saw um in vettes and the like. Yes toploaders are expensive, worth it too. I see them going for $750. + and mostly much +. Rock crushers were syncronized transmissions. I think maybe some confusion with crash boxes, which are not syncronized hence the name crash box.

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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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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.

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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

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Muncie M22 Rock Crusher Transmission Internal View

Sep 06, 2017· Internal inspection of a 1969 Muncie M-22 "Rock Crusher" Transmission. Note some wear on engagement teeth but all gears fully intact.10 spline input, 27 spli...

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Muncie M-22 Rock Crusher Four Speed Transmission ALL

Mar 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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Muncie M22 Rock Crusher 4 Speed Transmission

Muncie rock crusher 4 speed transmission 2019-9-2new design muncie m22 rock crusher close ratio 4 speedhis is the m-22 transmission that gm could not build newly designed state-of-the-art muncie front case from auto gearhis is by far the best replacement...

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How to Identify a Muncie Four Speed Super Chevy

Jun 22, 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 1965 Corvette.

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probably a dumb question m-22 rock crusher NastyZ28

Jun 20, 2012· I've had my car since 1985 and my neighbors used to hear me rolling into the drive with the m-22,My dad used to tell me to "fix"that transmission,he also used to listen to the soild lifters and tell me that engine is "loose" fix it!! Every one calls their muncie a"rock crusher" but most if you check the numbers are "B" coded M-21's! Later Steve!!

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Muncie 4-Speed: The Complete History Chevy DIY

To understand the evolution of the Muncie 4-speed you have to look at a series of engineering platforms that led to the final design of this transmission. The Muncie design has roots going back to 1935. I took the time to research the patent number that is cast into most Muncie main cases. It is U.S. Patent Number 3,088,336 (see Appendix).

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Muncie M22 Rockcrusher, Borg Warner Super T10 or Turbo 400

Aug 23, 2012· Cause that's why I'm liking the DR4 or the M22 Rockcrusher, yes I know the Muncie isn't straight cut but they are straighter then most. Aug 23, 2012 #6 Air_Adam Veteran Member

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