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.
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...
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 …
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 …
923· Muncie also had a second close-ratio transmission designated M22 and often referred to as the “ rock-crusher,” which was used behind the highest-performance engines and in Corvettes, the M22 is a highly sought-after performance transmission. It is the heavy-duty version of the 2.20:1 ratio M21 four-speed.
2025520· This 1970 Chevrolet Chevelle SS is for sale on Cars & Bids! Numbers-Matching 454-Cubic-Inch LS6 V8, "Rock Crusher" 4-Speed Manual, …
2014720· 68 chevelle muncie m22 rock crusher transmission roc89 99 subscribers Subscribed
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 …
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...
NEW Auto Gear Upgraded Super Case Muncie Heavy Duty M20 or M21 4-Speed. Camaro, Corvette, Chevelle, Nova. Summer Finally SALE!!
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.
2025427· General » General Discussion [ARCHIVED THREAD] - Why Is The Muncie M22 Transmission Called The ''Rock Crusher?'' (Page 1 of 2) ARCHIVED Previous Page Page
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 …
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 …
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.
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.
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.
923· Muncie also had a second close-ratio transmission designated M22 and often referred to as the “ rock-crusher,” which was used behind the …
Muncie Close Ratio - M-22 Rock Crusher Four Speed Transmission - ALL NEW GEARS Remanufactured · Muncie (3) $2,795.00
Muncie Close Ratio - M-22 Rock Crusher Four Speed Transmission - ALL NEW GEARS Remanufactured · Muncie (3) $2,795.00
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?
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
Muncie M22 4 Speed Transmission Rock Crusher Close Ratio 2.20 - ALL NEW GEARS Remanufactured · Muncie $2,295.00 $150.00 shipping
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 …
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
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.
69· The M22 ''Rock Crusher'' featured a one-inch countershaft pin bore and shot-peened gears with aggressive …
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 …