m22 rock crusher identification

Aug 07, 2018· TheM22 Rock Crusherwould come later to accommodate the heavy twist ofChevrolet'sbig-blocks in the mid-1960s. TheM20andM21transmissions produced from 1963-'74 are easy toidentify…

The 2.56:1 ratio is commonly referred to as theM20.Munciealso had a second close-ratio transmission designatedM22and often referred to as the "rock-crusher," which was used behind the highest-performance engines and in Corvettes, theM22is a highly sought-after performance transmission.

The Muncie came in three flavors: the M20, M21, andM22(theRock Crusher).IdentificationM20 and M21 - Driveline - GMH-Torana Page 1 of 2 -IdentificationM20 and M21 - posted in Driveline: I …

This a BRAND NEW SUPERCASEM22 Muncie RockcrusherStyle Transmission. This is a BEEFY version of the originalRock Crusher transmission. Most all the weak points of an originalMunciehave been solved by the Super-Case design. The Supercase has extra casting in all the known weak areas. The mid plate is ductile iron (steel).

How to Identify aM22 Rock CrusherIt Still Runs. AnM-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.

Jul 05, 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 …

Jul 29, 2016· Build Date Code Breakdown. 1963-1966 production codes will start with the letter P and have four numbers, for example: P0421. 1. P represents the manufacturing plant, Muncie.

Feb 21, 2010·M22 transmissionscan only beidentifiedremoving the selector cover(side cover) and visuallyidentifyingthe straight cut gears-all other muncie transmissions had conical cut(angle) gears. The most well known Muncie transmissions are the M20(wide ratio),M21(close ratio), and theM22(rock crusher).

Because main cases are often swapped rather than being repaired, the best way to determine if you have anM20,M21, orM22is to simply look at the gears. Without removing the sidecover you can look at the input shaft and check foridentification grooves cutinto the spline. The “ID” groove system was good until several things changed.

Times and requirements have changed making both the M21 andM22the closest ratio production 4 speeds ever produced but also not practical for today's driving habits unless road racing is your thing. The new Muncies being built today have some better ratios.Today's examples of the new car gear set ups are Mustang GT's with a 3.35 1st gear and 3 ...

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.

Identifying AnM22 Rock Crusher. MuncieIdentificationThe H.A.M.B. Feb 21, 2010路 Although some claim that the M23 is arock crusher, it is indicated that this box was assembled in both wide and close ratio components and also with straight cut gears common to therock crusher(M22…

You can identify the various M20, M21 andM22transmissions by the input shaft. ... of theM22created a problem with noise (hence the name "rock-crusher"). Get Price Muncie Transmission Id and ratio guide - D and L Transmissions

The Muncie came in three flavors: the M20, M21, andM22(theRock Crusher).IdentificationM20 and M21 - Driveline - GMH-Torana Page 1 of 2 -IdentificationM20 and M21 - posted in Driveline: I …

Sep 15, 2010· Across the top of the page are the words “First Build 4/15/65 – 1st Shipment 4/19/65, recap ofM22(Rock Crusher) Trans.” By comparing theseM22 transmissionassemblies to Chevrolet’s 1965transmission identificationcodes, I found a perfect match.

How to Identify aM22 Rock CrusherIt Still Runs. AnM-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.

Jun 13, 2017· TheM22 Rock Crusherused 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.

TheM22transmission 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.

M22, the rarest of the bunch. It’s nickname is the “rock crusher” due to the noise generated by the gearset. The gear ratios are the same as in the M21, but the tooth angle is different. You’ll get more gear noise, but you’ll also get more strength.

May 01, 2009·M-22“Rock Crusher”Identification. TheM-22close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. TheM-22was 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.

New Super Heavy Duty Direct Replacement and StrongestM22’s Made With Muncie Auto Gear Super Case and StrongestM22Close Ratio or Wide Ratio Gears. 10 OR 26 spline input and large 27 OR 32 spline output shaft. C355 Forged Aluminum Mid-Plate. Super Tail. AG Roller Side Cover. A great Super Heavy DutyRock Crusher M22for your Camaro, Nova, Chevelle, Corvette or other GM car.

M-22“Rock Crusher”IdentificationTheM-22close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth. TheM-22was 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.

The 4-speed design of the T10 and Muncie is a very “forward” design. Whether it was a series of lucky choices, or happy accidents, the 1957 design allowed for improvements. Other muscle car transmissions of that era, such as the Ford Toploader and Mopar A833, left no room for improvements because of the layout and initial design of their ...

The higher nickel alloy allowed for more impact of the gears. Another misconception is if you have a drain plug you have anM22. Again this was only true when the firstM22boxes were created. But all 3925661 castings had drain plugs. Reading Serial and VIN Numbers. Serial numbers forMuncie 4speeds always begin with the letter "P".

TheM22 Rock Crusherwould 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 ...