2025426· The Muncie M22 "Rock Crusher" is one of the most well-known manual transmissions available in classic cars. Named after its place of origin (Muncie, Indiana), this four-speed is the final
WhatsAppGet PriceGet A Quote
427· 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.
WhatsAppGet PriceGet A Quote
2025712· A manual transmission known as The Rock Crusher? What's up with that? And what were the Muncie M22's weak points and, lest we forget, its strengths?
WhatsAppGet PriceGet A Quote
1971 Muncie M-22 4 speed rebuilding core, see pictures, disassembled. What you see is what you get. This is for the person that needs a correctly date coded "C" stamped transmission to …
WhatsAppGet PriceGet A Quote
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.
WhatsAppGet PriceGet A Quote
2017613· Identifying a Chevy four-speed is easy if you know what to look for. If you find one, do you know what it is and if it will fit?
WhatsAppGet PriceGet A Quote
331· If you look a little closer, that stamping is 10 R 229308 which makes it from a third week of April 1970 Arlington, TX Chevelle so the P0C23C transmission assembly date and 3978766W0 tag fit. Put the transmission in 2nd gear and remove the side cover to view the helix angle of the gears and the condition of the synchro engagement teeth.
WhatsAppGet PriceGet A Quote
69· The M22 'Rock Crusher' featured a one-inch countershaft pin bore and shot-peened gears with aggressive helix angles that reduced heat and stress but also increased noise, leading to the nickname as the transmissions rattled their way down the road.
WhatsAppGet PriceGet A Quote
The M22 Rock Crusher used straight-cut gears (usually used in racing gearboxes), which led to its signature transmission whine, earning the "Rock Crusher" name.
WhatsAppGet PriceGet A Quote
331· M22 4 speed rock crusher Jump to Latest 5.9K views 19 replies 13 participants last post by 1970 GMuscle Apr 4, Grey chevelle Discussion starter
WhatsAppGet PriceGet A Quote
Muncie M22 4 Speed Transmission Rock Crusher Close Ratio 2.20 - ALL NEW GEARS Remanufactured · Muncie $2,295.00 $150.00 shipping
WhatsAppGet PriceGet A Quote
20081017· M22 transmissions can only be identified removing the selector cover (side cover) and visually identifying the straight cut gears-all other muncie transmissions had conical …
WhatsAppGet PriceGet A Quote
STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR ULTRA CASE With The Strongest M22z ULTRAWIDE RATIO 4 SPEED …
WhatsAppGet PriceGet A Quote
1970 chevy LS6 SS454 Chevelle = M-22 RockCrusher … 1970 chevy LS6 SS454 Chevelle = M-22 RockCrusher4 - speed For Sale, £0 Located in the USA. LhD Engine:454 ci 450 Horsepower LS6 w/M-22 Transmission: 4 … » Free online chat!
WhatsAppGet PriceGet A Quote
200559· I recently purchased a 70 Chevelle LS5 with an M22. I have the build sheet but there is no S/N for the Transmission. I have researched several Muncie sites and I am stumped by the Case number on my Transmision. Can you help identify if it is truly an M22. The number reads 3925856(or possibly...
WhatsAppGet PriceGet A Quote
2014720· 68 chevelle muncie m22 rock crusher transmission roc89 99 subscribers Subscribed
WhatsAppGet PriceGet A Quote
2025520· This 1970 Chevrolet Chevelle SS is for sale on Cars & Bids! Numbers-Matching 454-Cubic-Inch LS6 V8, "Rock Crusher" 4-Speed Manual, …
WhatsAppGet PriceGet A Quote
However, the Rock Crusher was only equipped in cars that had high-performance big blocks, including the Corvette, Camaro, Firebird and Chevelle. Thanks to the similarities between the …
WhatsAppGet PriceGet A Quote
2016729· 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 M20, the close
WhatsAppGet PriceGet A Quote
20081017· M22 transmissions can only be identified removing the selector cover (side cover) and visually identifying the 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 the M22 (rock crusher).
WhatsAppGet PriceGet A Quote
Identifying Muncie 4- Speeds. Several things are needed to identify a Muncie correctly. The first is a main case casting number. Second a count of the input shaft and output shaft splines and if any rings or grooves exist around the input shaft splines. Third are date codes and VIN numbers that help confirm that the above case and gears belong together. Tooth counts on the input shaft …
WhatsAppGet PriceGet A Quote
Muncie Close Ratio - M-22 Rock Crusher Four Speed Transmission - ALL NEW GEARS Remanufactured · Muncie (3) $2,795.00
WhatsAppGet PriceGet A Quote
2017617· The ’67 Chevelle was the last year for the first gen Chevelles, and it came from the factory with the buyer’s choice of two different transmissions, which basically offered the difference between automatic and manual. This article takes you between the two transmission types to give you an overview of the 4-speed Muncie M-22 Rock Crusher and the GM Turbo …
WhatsAppGet PriceGet A Quote
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 …
WhatsAppGet PriceGet A Quote
2025722· Waaaayyy back in 1970 I had a brand new 70 LS5 Chevelle with a Rock Crusher & 3:31 gears. 1st thing I did was get 4:10 gears. I was able to take off in 4th gear without giving it any gas, just by easing up the clutch! All that low end torque! 2nd thing I did was swap cams. Got rid of the hydraulic LS5 cam and replaced it with the solid LS6 cam.
WhatsAppGet PriceGet A Quote
STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR ULTRA CASE With The Strongest M22z ULTRAWIDE RATIO 4 SPEED TRANSMISSION. A GREAT HEAVY DUTY ROCKCRUSHER FOR YOUR CAMARO, NOVA, CHEVELLE, CORVETTE, GTO,442. THE MAIN CASE IS THE STRONGEST MADE with fill and drain plugs. C355 Forged Aluminum Mid …
WhatsAppGet PriceGet A Quote
2025427· General » General Discussion [ARCHIVED THREAD] - Why Is The Muncie M22 Transmission Called The 'Rock Crusher?' (Page 1 of 2) ARCHIVED Previous Page Page
WhatsAppGet PriceGet A Quote
1999715· My book says it is a M-22 Rock Crusher with 2.20 first gear and if it has Side Cover part # 3950306 it is a 69 and if it says 3884685 it is a 68. Sounds like a good piece of hardware and a rare one. Original 138 car from Freemont. 67 SS Bench seat 4-speed car with 396, Original M-20 with factory 3.73 12 Bolt Posi.
WhatsAppGet PriceGet A Quote
424· it only sounds like a rock crusher as if you could actually put rocks in the transmission and crush them into gravel
WhatsAppGet PriceGet A Quote
424· Now the "rarest" of the M22 transmissions is the "stone crusher" I remember a few clueless dealers using the "M22 stone crusher" in their less than intelligent ad copy.
WhatsAppGet PriceGet A Quote
WhatsAPP 24h online service
24h Online Chat
