Is this a real M22 Rock Crusher? | Team Chevelle
The 764 extension housing indicates the transmission has a 32 spline output which all 71 through 74 M20, M21, and M22 Muncies and the 1970 M22 had. A M20 with the 32 spline output and 26 spline input is a desireable Muncie as it was stronger than earlier Muncie M20s. Be aware that they are also 3/4 inch longer than earlier 27 spline …
How to Rebuild a Muncie Four-Speed Transmission
The Muncie four-speed is as legendary as the cars that it was put into, with the M20, M21, and Rock Crusher M22 models all part of the hot rod vernacular.
Are All M Muncies Called Rock Crushers
are all m22 muncies called rock crushers – Grinding Mill China. How do you distinguish between an M21 and an M22. The M22 is what they called ...
What Kind Of Muncies? | Team Chevelle
What Kind Of Muncies? ... I've seen people talk about Muncie M-20's, M-21's, M-22's, M-24's and Stone Crushers. I know they were all four speeds, but what made them different, and what were their specific applications? I'd imagine the M-20's were a lighter duty, probably for a 307's, 350's and low horsepower 396's and the M-22 and M …
Muncie "rock crusher" vs. TKO 600
The naysayers are saying "nay", again!! :here!: Now that my TKO 600 is all installed and functioning flawlessly, people are telling me I should have installed a Muncie M22 in my car instead of a TKO 600? I just finished the project, and already I have received this criticism from like 4 different gearheads. They say the old Muncie is bulletproof and …
426 Hemi Muncie Rock crusher Bell housing | Hot Rod …
I have two rock crushers in the garage and the 426 also. ... those Muncies won't last long. Seen lots of them blow behind BBC. ... Add to quote; Only show this user #11 · Jul 26, 2006. I ran a few M21 trannies and had no troubles, the M22 was a different story...?!? The M22 wasn't a very forgiving tranny as far as shifting went. At least mine ...
Muncie M22 Rock Crusher 4 speed | Hot Rod Forum
Can someone tell me how much a muncie m22 rock crusher is worth this transmission was produced buy gm in 1966&1967 . Thurston Vann. Save Share. ... M22 had straight cut gears, all other Muncies had helical cut gears. The straight cut gears gave the M22 it's different sound. Other Muncies were quite compared to the M22.
Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road …
Thomas N. on Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. SALE EXTENDED!!! Michael Coons on NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. SALE EXTENDED!!! Brett Henson on Auto Gear Upgraded Ultra Case M22Z …
M22-Wide vs M22 "Rock Crusher"
This higher level of noise is where the nickname "Rock crusher" originated. There are now aftermarket replacement gears, gear sets and complete reproduction …
NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher
New Super Heavy Duty Direct Replacement and Strongest M22's Made With Muncie Auto Gear Upgraded Ultra Case and Strongest M22 Close 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…
Muncie M22 Rock Crusher 4 speed
I had a 71 GTO with a M22 "rock crusher". This was an absolutely stout transmission. Had a distinctive "whine" due to the slanted gears. M22 had straight cut …
Muncie 4-speed
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. Another …
Muncie 4 Speeds
Personally, I think the angles vary from gear to gear. 1st gear on an M22 may be 19 degrees, 3rd may be 20 degrees. Also M22 gear sets were of 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".
When was the M22 first called "rock crusher"?
I know the M22 first came out in 1965 and its popularity really picked up around 1968. I have a suspicion that rock crusher may have first been used in a late-1960s auto magazine test drive, but was hoping the historians in this group might be able to …
M22 Rock Crusher Noise | Hot Rod Forum
M22 Rock Crusher Noise. ... That being said i have had muncies with mixed gear sets that made all kinds of crazy sounds..... I even owned one in my personal car that was about as loud as a M22 but it really had a different sound, After you get to know what the M22 sounds like..
M22 Rock Crusher? | Team Chevelle
M22 Rock Crusher? Jump to Latest ... Upon getting into the restoration I noticed he had an M21 bellhousing attached to a muncie 4 speed. i called him and asked him if he knew what kind of Muncie it was, he steadfastly said it was an M22 Rock Crusher. ... The 429 casting tail housing was used on the earliest of the Muncies. Your …
Muncie M21 Transmission | Chevy Tri Five Forum
Close ratio Muncies do whine more than wide ratios. The "rock crusher" M22 had gears with a lesser angle on the cut of the gears for greater strength so they make more gear noise than the standard Muncies.
Muncie 4-speed Transmissions
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 ...
Guide to Muncie M20, M21, and M22 Four-Speed …
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 …
Midwest Muncie | Muncie 4 Speed Transmissions …
Home of the world's best 4 speed muncie transmissions and parts. We also offer muncie rebuild kits, racing parts and m22 rock crusher transmissions.
M22
As we know, these were all features of fastest production, lowest cost Detroit manufactured car fifty years ago. That same lack of attention to detail also gave General Motors' M22 'Rock Crusher' its legendary "whine". If you're only interested in that noise, our M22 gearsets are not for you.
How To Identify Chevy Four-Speed Transmissions
Many enthusiasts mistakenly refer to all Muncies as Rock Crushers, and this is just not appropriate. While the M21 and M22 did have the same gear ratios, the M22 did utilize a cluster gear with the gear teeth having different tooth angles.
Muncie 4 speed....M21, M22, Rock Crusher? | The H.A.M.B.
Also, all '71 and newer Muncies had the 26 spline input, Turbo 400 size output, and drain plug that the M22s had, so don't be fooled into paying M22 prices for a non M22 transmission. ... I currently have an M22 Rock crusher in my '56 Chevy pickup, and have another M22 that was rebuilt about 6 years ago by my father but never used. I …
Muncie 4-speed
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. Another misconception is if you have a drain plug you have a M22.
Muncie or Saganaw that is the question. | Hot Rod Forum
Muncies have an aluminium case and are quite a bit lighter than a saginaw, but, there is nothing wrong with a saginaw that is in good condition. consider me the razor blade in your candy apple. Save Share. ... M22's are called rock crushers, but Borg Warner's are Bullet Proof. Where I come from Borg Warner's are found at the …
Muncie M22 fit? | Hot Rod Forum
The M20 is stronger, but noisy "the rock crusher" tranny, and you have enough rear gear to use the 2.20:1 first gear... M20/M21 have more helical gears, so quieter, but not quite as strong... one has 2.20 1st and other has 2.54 1st...
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 transmission type correctly before fitting it into your car. If …
Muncie m20 vs M21 | Hot Rod Forum
By 1970 the output was larger ( like a Turbo 400 yoke) and had the fine spline (26) input shafts. two grooves = 2.52 wide ratio tranny while NO GROOVES = 2.20 1st gear ratio. This is known as the "Rock Crusher M-22" and Grand Daddy of the Muncies.
Muncie Parts
In 1965, GM introduced an even more robust version of the Muncie transmission, known as the M22 or "Rock Crusher." This transmission, with its distinctive whine, became synonymous with high-performance cars of the era. The M22 featured straighter cut gears, providing a more aggressive gear mesh for increased strength and durability.
Complete Guide to Muncie Transmissions
The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's big-blocks in the mid-1960s. ... What makes the small-bore and large-bore case Muncies different is the input shaft bearing size and first gear, which rode on the mainshaft void of a bushing for 1963. For 1964 and beyond, it rode on a bushing …