The older cast iron T10's are weak. Muncies replaced them in about'63 in Chevys because a stronger trans was needed. The aluminum case Super T10 is a whole different animal. It was brought out around '73 (approx). It is as strong or stronger than a Muncie M22. An NHRA Stock Elim guy I know runs a Super T10.
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 trickle out the door in 1965-67 and was buried in the option lists.
To do so, it needed an even tougher gearbox than the M21, and while the Grand Sport never made it to Le Mans due to GM politics removing its brands from motorsports competition, the Bowtie brand was able to test the Muncie enough to develop a newer version that eventually hit the streets as the M22. The M22 'Rock Crusher' …
GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1967 - 1968 model Camaros. This one will have the studs coming out from the side where your shifter linkage mounts. This is the Muncie M-22 …
Nov 1, 2005. Messages. 273. Location. IL. Mine has made that noise since new and i know some others that say there tko's are kind of noisey in 5th gear also. A buddy called tremec and they told him it was normal so i wouldnt worry about it. I have dumps on my car now so i cant even hear it anymore. Jun 19, 2007.
M20 M21 M22 ROCK CRUSHER [Add $999.95] Type in your Rear Gear Ratio. Rear Gear Ratio*: Type in your Tire Height. Tire Height*: Qty: Description Technical Specs 1967 - 1968 Camaro Complete Muncie Four Speed Conversion Kit Stop wasting time and money trying to piece together a 4-Spd conversion kit. Get it all at one low price with virtually ...
You could distinguish a M22 rock crusher, by the straight cut gear sound when underway. Regular old M20 & 21 yes, but less prominent. I'd try the rear diff oil …
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. The M22 to come later in 1967-'74 is also a close-ratio unit, but much stronger than the M21, with a higher torque ...
M22 Rock Crusher - $2,500. Nov 17th 2023 562 1 Show phone number $2,500. Listing Number: 184499471 Report this listing. BILLINGS, MT, US No trades accepted ChandlerH38 (Private Seller) Share. Save. Msg. Call. Item description M22 Muncie Rock Crusher Yes has an M20 case, M22 internals ...
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 ...
What is the difference between an M21 and M22? The rock crusher gears alloy content is different and the different gear angles make the noise. The ratios are the same for both. ... The M22 was not designed as a pure road race trans. Muncie was looking for a way to reduce the thrust load caused by the high gear helix angle on the standard …
For sale is a Factory Replica of the Close Ratio Muncie Rock Crusher Four Speed Transmission typically used in High Performance 1965 to 1981 Corvette`s, Camaros, Chevelles, Nova`s, El Camino`s, Impala`s, Oldsmobiles and Pontiacs. ... Mystery Muncie First Gear noise eliminated. And by the way all my M22`s come standard with the Rock …
Muncie M22 "Rock Crusher 4 SPEEDS FROM 1965 TO 1974: This page is devoted to OEM Complete units; New aftermarket units and OEM parts and NOS parts. ... Muncie M22 REBUILD KITS: Quality parts from our inventory are assembled into kits for rebuilding M22 4 Speeds from 1965 to 1974. Kits are priced at $165.00 freight paid in US only.
The M22 is a serious beast when it comes to transmissions. The only negative was the noise that this transmission would produce. When the engine was driving at low revs the transmission would rattle like it had gravel inside and would whine at high rpms. The M22 was eventually dubbed the "Rock Crusher".
If your sure its a real M22, its a pretty rare transmission. THey go for about $800-1200 on EBay depending on condition. I know because I was once looking for on until I got a Borg warner instead. If its an M22, the input shaft should have no rings on it and the spline count should be 26. They are nice transmissions.
The M22 sound just got on my nerves when I had it in my vert. swapped it out with an M21 much quieter. I still have the M22 in storage along with some of the other original parts from its old racing days (intake, heads, ramhorns,rims, seats, interior pieces and 2 other hoods).
Why is the Muncie M22 called the rock crusher? October 12, 2022 by Carolina. Spread the love. The reduced gear angle of the M22 created a problem with noise (hence the name "rock-crusher"). Performance seekers decided to live with the noise when the benefits of increased durability from the gear-tooth angle outweighed the …
The "Rock Crusher" was built for road racing, with the angle of the gears straightened out to prevent excessive wear in the front bearings due to the forward thrust component of the force vectors caused by the angle of the stock gear (angled to prevent noise and increase the contact patch of the gear for added strength). So in effect the …
The transmission would make the same rock crusher noise, but I would have a much tougher transmission. 1966 Charger (383, 727 Torqueflight) 1970 SS 454 Chevelle (LS5+2, M22, 3.31 12 bolt)
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 …
#1 · May 9, 2005. I know that a M22 makes a whining sound in 1st, 2nd & 3rd gears but how loud? Does a M21 make any noise at all? Mine makes a whine in the 3 gears but it is …
Doe this mean it's still an M22 but just manufactured at the Saginaw assembly plant or it's not an M22 "Rock Crusher Transmission". I am just learning ! Save Share. ... If I were to purchase a rebuilt M22 with the proper maincase/tailshaft/cover stampings what is the market price. I have located 2 and 1 source was asking $ 2500 …
John DiLauro on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to 3.42 Rear End Gears. SALE EXTENDED!!! Garry Brown on Super Pro Road/Race Muncie Upgraded Ultra Case M22 Rock-Crusher. SALE EXTENDED!!! Michael wilhelm on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. …
matching # M22 w/CF dual friction clutch. Holley 750 HPs dp(82751) on Weiand Stealth & MSD Pro billet HEI ... i have an m22 rock crusher, i'd like to change the oil, but im not sure what type of oil (weight) ... My munce that was never rblt made a little noise (that it never made with conven oil) when hot on like 80-90 deg day crusing on the ...
The reduced gear angle of the M22 created a problem with noise (hence the name "rock-crusher"). Performance seekers decided to live with the noise when the …
M22 SUPERCASE 4 speed Muncie Rock crusher Style tr. Share . Item Description: Category: Transmission & Drivetrain Bought this transmission new drove it about 300 miles,it goes great shifts great but with my rearend gears swapped it out for a 5 speed It has 10 spline input and 27 spline output shaft. Hurst shifter is included less the shifter ...
rreruption. 507 posts · Joined 2006. #2 · Jun 3, 2006. I've installed them both.And In my opinion the M-22 is way better.The M-21 was close ratio but I've broken quite a few more of those,Than a M-22.The M-21 was good enough for a street driven cars,And racing.But the M-22 was far superior to it.I've only broke a M-22 twice.And I …
It tells how to pick out what is what but the main thing to look for in a M-22 is the gear angle. Take off the side cover and look at the angle of the gears. M-20, m-21 will have 45 degrees gears and the m-22 is …
Check These Out. Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1969 - 1973 model Chevelles and Novas. This one will have the holes on the side where a bolt will secure …
05. If your Muncie is anything like ours, a thorough cleaning is the first step in the rebuild process. Ours had years of accumulated oil and dirt. We recommend using some sort of product that ...
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 …
Just three types of Muncie 4-speeds are available based on the RPO (regular production option) code used when a car was ordered: the M20 (standard wide-ratio), M21 (close-ratio), and M22 (heavy-duty close-ratio). (The M does not stand for "Muncie.") Typically, when you ordered a GM car you had standard options and accessories installed.
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C3 of Year Finalist (appearance mods) 2019. Sort of. The M-20 was a close ratio-- 2.20:1 low gear and less split between the gears until 4th @ 1:1. The M-21 and M-22 were both a 2.54:1 low. The M-22, AKA "Rockcrusher" had straight cut gears and was the stronger of the Muncie gearboxes. Made more noise too.
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 …
It tells how to pick out what is what but the main thing to look for in a M-22 is the gear angle. Take off the side cover and look at the angle of the gears. M-20, m-21 will …