The shift lever for the 4-speed manual, numbers-matching M22 Rock Crusher transmission is console-mounted and features a chrome shift knob; to its rear, undamaged console trim shows the shift pattern, and a storage box separates the two front seats. Under …
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.
Correct 1970 4-bolt 454/450hp block, M22 4-speed Rock Crusher Muncie transmission and original LS6 CRW 410 12-bolt posi-traction rear end. It also has a 6,500 rpm redline tachometer, bucket seats, console, ZL2 cowl-induction hood and original 14" SS Rally wheels with wide-oval tires. Feel free to contact me via text or phone (330-329-3633) if ...
64-74 NOS MUNCIE BEARING RETAINER 3915020 M20 M21 M22 Rock Crusher COPO. Brand New. 5.0 out of 5 stars. 1 product rating. - 64-74 NOS MUNCIE BEARING RETAINER 3915020 M20 M21 M22 Rock Crusher COPO. C $120.95. Buy It Now. +C $66.71 shipping. from United States.
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 …
Apr 27, 2016· The first time I heard the term "rock crusher" was in reference to the transmission in the 1967 L88 Corvette. Due to the low gear angle there is a fair amount of gear noise, really like a medium / heavy duty truck transmission. True enough the M22 did …
Extremely rare and legendary race-bred performer Factory M22 "Rock Crusher" 4-speed car with 4.10:1 Positraction Very well equipped with options including chambered exhaust Rare Fathom Green over green; legendary L72 427 show-winning restoration completed during 2004 Verified COPO vehicle by Ed Cunneen of the COPO Connection
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 Pontiac vehicles. Compatible Vehicles.
Feb 21, 2010· 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).
The term "rock crusher" refers to the noise made by the meshing of the stronger helical gears in the M22. Later model 1971-'74 Muncies are also popular with racers, because these transmissions used a 32-spline output that is stronger than the early 27-spline, and the newer units seem to perform better in high-rpm and high-horsepower applications.
The term "rock crusher" refers to the noise made by the meshing of the strong-er helical gears in the M22. Later model 1971-'74 Muncies are also popular with racers, because these transmissions used a 32-spline output that is stronger than the early 27-spline, and the newer units seem to perform better in high-rpm and high-horsepower applications.
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. An M-22 "Rock Crusher" always has 26 teeth. Count the number of splines in the …
-Numbers Matching M22 Rock Crusher Transmission -Numbers Matching Motor With Correct Heads (Please note: If you happen to be viewing this 1971 Chevrolet Camaro Z28 on a website other than our Garage Kept Motors site, it's possible that you've only seen some of our many photographs of the car due to third-party website limitations.
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 wide- and close-ratio units.
Jun 20, 2012· ROCK CRUSHER... it is the smoothest shifting transmission i have ever driven... hardly feels like you are crushing rocks... i feel a little click every time i shift so i wonder if that is it... and yes i checked the numbers it is a true m-22 ... Every one calls their muncie a"rock crusher" but most if you check the numbers are "B" coded M-21's ...
Dec 11, 2009· 1964 Pontiac GTO PostMatching Numbers6,452 MilesMASTERPIECE WeBe Autos is proud to present an absolutely exceptional example of this all original and comp...
70-74 C3 Corvette Chevelle Camaro Nova M22 Muncie 4 Speed "ROCK CRUSHER" Transmission-Fine Spline Input Shaft (26)--All New Parts--Italian Gears---Large Turbo 400 Output Shaft. GM #3925661. We can have the case stamped to match a car for a numbers matching build---call for details.
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 …
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 …
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
Serial numbers for Muncie 4-speeds always begin with the letter "P," which stands for Muncie Plant (not "passenger car.") "M" and "N" were used to identify 3-speed Muncies; "O" identifies the Saginaw 3-speed with overdrive. Serial numbers from 1963 to 1966 included only the month and day. For example, P0101 indicates January 1.
Item specifics. Condition: Used. 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 ...
David on Auto Gear Super Case Muncie M22 4-Speed Rock-Crusher, Camaro 4-speed 10/27 or 26/27spl. SUMMER SALE ON NOW!!! Michael Welage on Auto Gear Super Case Muncie M22 4-Speed Rock-Crusher, Camaro 4-speed 10/27 or 26/27spl. SUMMER SALE ON NOW!!! Shawn Riley on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. SUMMER ...
Jun 13, 2017· 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. If a car came with an axle ratio of 3.73 (or numerically higher), it usually came with a close ...
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 M21 & M22 is a four speed, RWD or 4WD transmission. 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 and are located ...
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 …
How to Identify a M22 Rock Crusher by Janos Gal . ... Each transmission has different numbers of teeth. An M-22 "Rock Crusher" always has 26 teeth. Step 3. Count the …
The M22 "Rock Crusher" followed four years later. It uses stronger components to handle big-block power. The original M20 was only offered for one year. It has the GM casting number "3831704" on the case. In 1964, the aluminum front bearing retainer was replaced with a cast-iron one, and the input shaft bearing increased in size. This ...
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.
It is a numbers matching 454 Big Block V8 and M22 Rock Crusher 4spd. Fully document with 3 build sheets and Protect O plate. Options include Cowl induction hood with stripes, dual sport mirrors, bucket seats, power disc brakes, 3.31 rear end, power steering, tinted glass, and more.
An M22 retains less heat due to the straight-cut gear design and the lack of thrust that helical-cut gears create. 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.
Dec 11, 2015· Muncie M22 Rockcrusher with Hurst V-Gate inline shifter. This is a 1970-1974 Muncie 4-speed transmission with casting number 3925661. I have had it in my 1978 Camaro Z-28 for over 20 years but am changing to a T56 transmission. It is a wonderful transmission that can handle a ton of horsepower and comes with an inline linkage, Centerforce Dual ...
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...
Serial numbers for Muncie 4 speeds always begin with the letter "P". P stands for Muncie Plant. Not for passenger car as some self proclaimed specialists may think. The letter M was used to ID the Muncie plant for the Muncie 3 speed, so P was the next logical letter. The letter O would add confusion since it …
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 M22 units were actually built for 1965 production. The engineering change documentation for the M22 is dated December 12, 1964.