M22 or M21 what's the diff? | Team Chevelle
The M20 is the wide ratio regular Muncie (2.56 in 63-65, then 66-74 it was 2.52), the M21 is the regular close ratio (2.20) and the M22 is the Heavy Duty (Rockcrusher 66-72, no documentation for a 73-74 M22). ... (or anything) with a M20-21 amd wanted to convert to a really strong M22, it's too easy. First, break it all down to the bare case ...
Muncie M-22 or tremec 5 speed | Team Camaro Tech
Muncie M-22 or tremec 5 speed ... I was planning on getting a muncie rock crusher for my 68 cause ive heard theyre awesome trannies. ... at all and if any gm tranny I would get the M20 if you must have the manual and but put 3.73 gears in. Truely manuals break lots of parts when raced and are not great in heavy traffic. they still hold a ...
M22 Rock Crusher
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 3 speed transmissions | Team Chevelle
GTO 3-Speed Transmission, 1972 GTO, Heavy Duty 3-speed transmission, Dearborn, Muncie, M13, M12, Muncie M20, M22 rock crusher, Auto Round-Up MagazineA: L.C., thanks for the nice words. ... or pick up Hemmings Motor News and Auto Round-Up magazines for tracking down your original Muncie M13 3-speed. You may …
Muncie M-22 Rock Crusher
Leaks out of the cluster gear shaft both front and rear at the mid plate. People think the "Rock Crusher" is special or stronger than a standard wide box …
Muncie 4-speed Transmissions
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.
MUNCIE M22 "ROCK CRUSHER"
Finally, a show car transmission worthy of your SHOW CAR OR STREET VEHICLE. The M22! This iconic transmission is based upon the infamous "ROCK CRUSHER" Transmission made famous in the 60`S AND 70`S by being installed in the L-88`S, BIG BLOCK 425 HP Factory Muscle Cars and HOT RODS of the past.
M-22 vs. BW ST-10
How does the Muncie M-22 rock-crusher trans compare to the Borg Warner Super T-10 Power Brute transmission (the ones with a nodular iron case and high nickel …
How to Identify a Muncie Four Speed: Build Date Codes
Last time we talked about how to distinguish a Muncie four-speed transmission from a Saginaw or BorgWarner and the different types of Muncie transmissions, including the wide-ratio …
Muncie 4-speed Transmissions
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 stronger helical gears in …
Muncie m22 max torque / horsepower | Team Camaro Tech
Well I'm wondering how much I can push my stock Muncie m22 before it breaks and what should I keep her at so she doesn't break. ... zero rock slider/hubs (use torque lock slider only with gearsets with torque lock synchros like korean gearsets) ... Note that how fast the clutch pulls the engine down has a huge effect on the height of the …
Muncie 4 Speed Transmissions
How to Identify Muncie 4 Speed Transmissions. The most popular question has to be that everyone thinks they have the famous "rockcrusher" M22 4 speed.
M-22 "rock crusher"
He mentioned he had a M22 rock crusher in his car, and how rare it was because only a few of the M22's were "Rock Crushers". ... this made the gear teeth stronger and less likely to break under extreme loads (such as racing conditions). ... they all had that rare 68 chevy with a corvette 327, rock crusher muncie and a 12 bolt posi that …
The Muncie 4 Speed Transmission Taught A Generation Of …
By the time the Muncie was in its final phase of production (1971-1974) it also gained a 32 spline output shaft in place of the original 27 spline unit. Wide, Close, or Rock Crusher Initially there were two specific Muncie transmissions available: the M20 wide-ratio (2.56:1 first gear) and the M21 close-ratio (2.20:1 first gear).
Midwest Muncie | Muncie 4 Speed Transmissions And …
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.
Magical Muncie Four-Speed | Hotrod Hotline
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. People think all Muncie …
What Gear oil do you use in your Muncie?
Torco, Lucas and other 75-90W unless it is a M-22 that needs a "special" gear oil for it's gearset. I use Redline Shockproof 75-250 in my "Rock-crusher" but, synthetic seems to leak past the gasket technology of our Muncies (a very slight leak but after sitting weeks in the garage, a penny size pool can be seen.)
Rock Crusher identity | Hot Rod Forum
The famous "rockcrusher" M22 4 speed had the same gear ratios as the M21 but with a heavy duty gearset. Although the gears are not spur gears ( completely straight ) they still produced a fair amount of gear noise thus the "Rockcrusher" name.
GENERAL MOTORS MUNCIE 4-SPEED MANUAL …
GENERAL MOTORS "MUNCIE" FOUR SPEED 10-1-01 6 GROUP A: MAINSHAFT A1 Yoke Stop Snapring 27 spline mainshaft (1963) 3707191 3707191 ... L36-s36T: M22 'Rock Crusher' (1964-74) 3924796 WT297-12B NOTE: these TWO (2) gears w/o snapring counterbore on cone end: used w/o thrust washer.
Muncie m20 vs M21 | Hot Rod Forum
On tranny's that have no grooves around the splines deserve a look inside for the gears that are almost straight (very little angle to them compared to other muncies) These are 2.20 1st gear Muncie M-22 trannies. (Also known as the Rock Crusher due to the whining sound these trannies make while upshifting 1st thru 3rd gears due to those ...
How To Build a Bulletproof Muncie M-22 Four-Speed …
The Muncie M22 is known as the Rock Crusher. See how we improve its strength and versatility by adding a Gear Vendors Overdrive.
How to Identify a M22 Rock Crusher | It Still Runs
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.
Muncie 4 speed....M21, M22, Rock Crusher? | The H.A.M.B.
I was just wondering how many different variations there are of the Muncie 4 speed and which ones are best and for what reason (s). I currently have an M22 Rock …
Muncie M22Z on the way (UPDATE: switched to the M23Z)
It has the nice rock cruiser whine but its not over top loud. They do have a break in procedure. Don't let it idle in neutral with the clutch engaged . ... Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. SPRING SALE!!! - Muncie 4 Speed Transmissions And Rebuild Kits
Muncie 4 speed....M21, M22, Rock Crusher? | The H.A.M.B.
I was just wondering how many different variations there are of the Muncie 4 speed and which ones are best and for what reason(s). 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 also have what I believe is an M21, but I'm not certain.
M-22 "rock crusher"
Based on these 2 factors, the FACTORY installed either a wide or close ratio 4sp (BOTH were M20) to be more compatible with the engine/rear ratio combination. …
How to Identify a M22 Rock Crusher | Cars DIY & HowTo Blog
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 M-22 "Rock Crusher," even if it does not have a …
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.
Muncie 4-Speed Identification Guide
This is the standard Muncie 4-speed case. It has a seven-digit serial number cast into the case on the passenger's side. These are usually the first numbers used to start the identification process.
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 …
Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher Style Transmission
This a BRAND NEW SUPERCASE M22 4-Speed Rockcrusher Style Transmission. Each new Auto Gear transmission is built from genuine Auto Gear parts, the highest quality available. This is a BEEFY version of the original Rock Crusher transmission.
Muncie M22 Rock Crusher 4 speed
Many people have guesses about deciphering M-22s. Like grooves in the input shaft and numbers and etc etc... The only way to tell is to open the case and …
A 833 vs Toploader vs Muncie (rockcrusher)
I make no excuses about being a big A833 fan, and in my opinion the 18-spline hemi 4-speed is the strongest of the three. The Toploader would be a reasonbly …
1967
1967 - 1968 Muncie 4 Speed Transmission, M-22 Rockcrusher Complete original 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, like pictured.