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Category: automotive convertible. 4.5/5 (45 Views . 9 Votes) It's no secret that the Saginaw and Borg Warner transmissions were not built to handle the kind of power that a Muncie transmission could withstand. But in non-performance applications, they were still a good transmission…


Although some claim that the M23 is a 'rock crusher', it is indicated that this box was assembled in both wide and close ratio components and also with straight cut gears common to the rock crusher (M22) transmission. Looks like you have a second design-feb. 28th, 1968, M20 or M21. Definitely not a rock crusher(no straight cut gears).


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.


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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m22 rock crusher for 1968 z

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 identify an


How to Identify a M22 Rock Crusher | eHow. How to Identify a M22 Rock Crusher. An M-22 "Rock Crusher" is a Muncie four-speed transmission for cars made by General Motors in the 1960s. Identify a... More details » Get Price


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 …


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


I have 67 Camaro with a factory M20 4-speed. The synchronizers are going bad and its time to replace the trans. The engine has been freshly built and pushing 450-500HP I am looking at either a Keisler 5-speed or the legendary M22 Rock Crusher from Midwest Muncie. Can anybody tell …


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C 2.20:1 Rock Crusher Of course like engines, transmissions come and go over time, so below is the (as complete as I can make it) transmission plant prefix list: Plant Type Prefix Plant Type Prefix Cleveland Manual Powerglide A Saginaw overdrive O Cleveland Turbo Hydramatic B …


Muncie 4 Speed Rock Crusher Gear Ratio Calculator. Muncie 4 speed rock crusher gear ratio calculator how to identify a m22 rock crusher ehow an m22 rock crusher is a muncie fourspeed transmission for cars made by general motors in the 1960s identify a check the casting number the production year and the gear ratios on the aluminum serial number plate attached to the tr read more


Every GM Rock Crusher has a casting number with which you can easily identify a transmission box. Count the input shaft teeth to find out the make of the transmission. Input shafts differ in each GM transmission so you can easily identify an M22 Rock Crusher by its input shaft count. Trade Assurance. Pollo Mining Heavy Industries Co., Ltd.


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How can you tell if you have a rock crusher M22? Look for the "GM" sign imprinted on the transmission box to identify the manufacturer of the transmission. Check whether there are any rings around the shaft splines. An M-22 "Rock Crusher" has no rings, so if you see rings in your transmission, it means it is not an M-22 "Rock Crusher."


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.


OPTIONS YOU CAN ADD: $150.00 MICRO SUPER FINISH. $35.00 THRUST BUTTON FOR HEAVY LAUNCH AND DOWNSHIFT CASE SUPPORT. SUPER ROCK CRUSHER M22 650 HP. CALL for orders; NEW Direct replacement M22 ; For up to 650 HP power applications; 10 or 26 Input Spline; 27 or 32 output Spline; Speedo tooth count needed; Includes Richmond GL4 Gear Oil; No core charges


Rock crusher transmission codes - esakeu rock crusher transmission codes, identifying muncie rock crusher by serial number, transmissions can be identified from later the serial number is a date code, get price decode on rockcrusher transmission the.


Having issues diagnosing problems with your M21 M22 4 Speed Muncie Manual Transmission? we can help. Below you will find a detailed parts list for the M21 & M22 manual transmission that includes complete rebuilt transmissions bearing rebuild kits with and without synchro rings, gaskets and seals, small parts kits, bushings, individual bearings, slider, synchro rings, forks, gears and shafts.


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Muncie 4-speed

Transmission Identification 1964 to 1968 Muncie 4-speed transmissions can be identified from later models by the way the transmission arms attach. Early Muncie side covers had a stud and the shift arm attached with a nut on the stud while the 1969 and later model side covers had a hole and the shift arms attached with a bolt.


Bismarck, North Dakota. 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. This code will not necessarily be correct anymore because someone could have changed the internals.


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muncie rock crusher 4 speed transmission Products. MUNCIE M-22 ROCK Crusher Four Speed Transmission New Gears Show Car Quality $1,695.00. For sale is a Close Ratio Transmission for 57 thru 74 GM products including Grand Sport Corvette, Chevrolet, Oldsmobile, Buick and Pontiac and is a rare opportunity to own a virtually brand new M-22 Close Ratio Rock Crusher Transmission with a.


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.


Muncie M22 Rock Crusher 4 speed - Hot Rod Forum : Hotrodders ... Can someone tell me how much a muncie m22 rock crusher is worth this transmission was produced buy gm in 1966&1967.


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 identify …


How to Identify a M22 Rock Crusher Free Online Repair. Every GM Rock Crusher has a casting number with which you can easily identify a transmission box. Count the input shaft teeth to find out the make of the transmission. Input shafts differ in each GM transmission so you can easily identify an M-22 "Rock Crusher by its input shaft count.


You can really hear this gear box howl in the background as James Taylor and Dennis Wilson talk at a little over 3 minutes in this youtube clip. Later on we get to see the same car with new paint in the classic film "American Graffiti" with Harrison Ford at the helm. Since they used a dummy car for inside dialog shots you miss the flavor of the ...


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.


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


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. Nowadays there are custom gear ratios and set ups, including M21 wide-ratio and M22 wide-ratio units. You can pretty much get what you want.


Every GM Rock Crusher has a casting number with which you can easily identify a transmission box. Count the input shaft teeth to find out the make of the transmission. Input shafts differ in each GM transmission, so you can easily identify an M-22 "Rock Crusher by its input shaft count. Each transmission has different numbers of teeth.