zero rock slider/hubs (use torque lock slider only with gearsets with torque lock synchros like korean gearsets) gear drive made from steel; muncie super case OR N24 Ultracase with ribs (even better) alloy midplate OR iron midplate (even better) alloy side cover; heavy duty tailshaft; etc etc.. just check out his shop
The Gear Box is the source for Muncie Parts like the new assembled M22 SUPER ROCK CRUSHER 4 speed kit with micro super finish or downshift case support. The Gear Box Transmissions. Muncie-Tremec-Saginaw-TKO-Top Loader-Richmond ... Muncie Parts > NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. NEW Muncie M22 SUPER …
Muncie 4-speeds were produced in two different ratios wide ratio (M-20) and close-ratio (M-21). An extra heavy duty close-ratio version (M-22) was also offered on many of the big-block high-performance models.The choice of …
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. ... How to Identify a M22 Rock Crusher by Janos Gal . Thinkstock/Comstock/Getty Images.
If you have a Muncie with a similar character after the date, can get a photograph of it and KNOW whether it's an M20, M21, or M22, please pass it along. 1968. 1968 Muncie transmission tag #3924706. Date stamped P8P27 for Muncie, September 27, 1967 and partial VIN of 18K116891. Reported to be M21 but cannot find tag number to verify.
This bumbed me out since I had previously read that this was an indication that it was a Saginaw not a Muncie. It does have a 7 bolt side cover. 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 !
This is how the Muncie countergear's design evolved. The center gear is from a BorgWarner T85 3-speed. The lower gear is the latest version of the early T10 and the upper is the Muncie M22. Note how the Muncie gear is physically …
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 want to consider an ad in either of ...
Ratios of the M20, M21, M22. Muncie 4-speeds were produced in two different ratios wide-ratio (M-20) and close-ratio (M-21). An extra heavy duty close-ratio version (M-22) was also offered on many of the big-block high-performance models.The choice of transmission was dictated by the engine size and rear-axle ratio. Axle ratios of 3.73 and ...
Step 2. 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 M-22 "Rock Crusher by its input shaft count. Each transmission has different numbers of …
The M22 Rock Crusher used a gearset that features less of an angled-tooth gearing (right). Images courtesy chevelles ... 1969-1974 M22 None. We said almost all Muncie transmissions had a groove(s) around the input shaft, and that is because most close-ratio Muncies will have one ring around the input shaft. But, those built between 1963 and ...
We have the best prices on Muncie 4 speed parts, including Chevy Muncie 4 speed transmission parts, and we can guarantee you a great selection of items extending from the lowest cost seal or bushing to a complete replacement wide ratio or close ratio M22 gear kit. More Information on Muncie M20, M21 & M22 Transmissions
hopefully he meant that a m22/rock crusher was rarer installed in a car. jim. Jim. 70 chevelle, SS clone 454 4 speed 3.31 12 bolt posi. 71 camaro. (owned since 1978!) 454 …
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 …
P-muncie 9-1969 B-February 08-Eighth day C-M22 MODEL IDENTIFICATION(1969-1972) ... and the M22(rock crusher). Although not mentioned much, there was also an M23 transmission that was used, beginning in 1970. ... bearing broken in half.replaced but can,t get trans to go in gear .shift linkage looks okay. pushed clutch pedal …
The 2.20:1 ratio first gear is usually referred to as the Muncie M21 transmission; based on GM's production codes. The 2.56:1 ratio is referred to as the M20. 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 ...
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). ... rock crusher muncie and a 12 bolt posi that they would shift from first to second around 60 mph. jim ...
Transmission, Manual, 1971-74 GM, Muncie M22, 2.20 1st. Remanufactured 4-speed manual transmissions are now available from OPGI. Each transmission is disassembled, cleaned and inspected to ensure an outstanding final product. Each transmission features top-quality components throughout, as well as premium seals and gaskets for a leak-free experience. …
Identifying Muncie 4 Speeds III by Paul Cangialosi : The most popular question has to be that everyone thinks they have the famous "rockcrusher" M22 4 speed. This had the same gear ratios as the M21 but with a heavy duty gearset. The reason you may ask? Well it wasn't designed so that you could go drag racing on Saturday night or impress ...
GM's goal with the Muncie four-speed was to produce a better shift employing larger synchro cones. He tells us both the M20 wide-ratio and M21 close-ratio transmissions were first offered in 1963. The M22 Rock Crusher …
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.) ... Several times I have seen both Redline and Amsoil turn to jelly, break down and separate. I've had better success with Mobil 1 ...
We are restoring a 72 Chevelle SS and would like to use a Muncie "Rock Crusher". Is there anyone out there that and tell me the difference between a Muncie M22W and a M22 Rock Crusher. ... There is also no such thing (officially) as an M22 "rock crusher"... the "rock crusher" name comes from the noise generated by the reduced helix angle on the ...
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 GM hallmark imprinted on its …
So in effect the "Rock Crusher" is weaker in terms of torque transmission than a M21 close ratio box found behind a BBC. Because everyone thinks the "Rock Crusher" is bullet proof they tend to abuse them until they break. Then they tend to patch the busted tranny up enough to sell it to the next victim who thinks they are great.
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 22.5 degrees. They used this to reduce friction and in turn gave it a nice greary noise thus the 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. ... We use original M22 Cases and M22 Gear Sets or rebuild them with …
Also the input shaft cannot be used as a guide because there are various firms now manufacturing replacement input shafts that have no identifying rings. A original M22 is a rare beast, as most have had various gears replaced, and some M22's have been created by installing entire M22 gearsets in an M20 or M21 case. Vince
See more 1968 Muncie M22 4 Speed Transmission Wide Rati... Share | Add to Watchlist. Check the item description to confirm this fits your vehicle. Picture 1 of 10. ... Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo (#1) See all feedback. Product ratings and reviews. Learn more. Write a review. 4.8.
GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1967 - 1968 model Chevelles and Novas. This one will have the studs coming out from the side where your shifter linkage mounts. This is the Muncie M-22 Rockcrusher four speed. Designed for the highest performance models.
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. ... you flip the 3-4 shift lever on the side of the trans so it points down …