Serial numbers for Muncie 4 speeds always begin with the letter "P" P stands for Muncie Plant Not for passenger car as some self proclaimed specialists may think The letter M was used to ID the Muncie plant for the Muncie 3 speed so P was the next logical letter The letter O would add confusion since it resembles zero
It has a Holley DZ 4 barrel carb and a correct Z28 intake manifold A correct Muncie M22 rock crusher 4 speed manual transmission is on back and this pushes power to a 12 bolt rear with gears Hooker headers flow out of a beautifully restored Chevrolet Orange painted block snazzy polished ribbed valve covers and a correct air cleaner
4 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
The Muncie four speed is as legendary as the cars that it was put into with the M20 M21 and Rock Crusher M22 models all part of the hot rod vernacular
All said and done the cost is about the same if you have a 4 speed already You can sell the Muncie to offset part of the Swap cost 69 SS396 Cortez Silver SOLD 69 Pro Tour LS3/T56 SOLD "It s got an M 22 Rock Crusher" If you swap it for a TKO 600 The 600 stands for 600 lb ft of torque capacity then that claim is gone I had a M 22
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 $ NEW Muncie M22 SUPER ROCK
Two other items I d like to mention If buying a used tranny pull the side cover and look see inside dont take someones word it s good Bring a telescoping magnet and go through the gear lube in the bottom of the case
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 As Tom stated this is a great addition for the Muncie 4 speed AND my personal favorite gearset Jody Haag 610 413 8015 Jody s Transmissions on Facebook
The Muncie 4 speed transmission was used with many different GM models and engine combinations from 1963 through 1974 The basic design and operation theory of the gearbox changed little during this period however several design upgrades and modifications were made during the total production run M 22 Rock Crusher Identification The
RACING Muncie Slick Shift Clutch less Super Duty M23 Upgraded Ultra Case 4 speed Drag Racing Rock Crusher 2025 Spring SALE Rated out of 5 $ 4 Original price was $ 4 $ 3 Current Ultra Pro Super N24 Heavy Duty Ultra Case Muncie 4 Speed Gasser Race with Long V Gate Shifter Limited Quantity 2025 Spring SALE
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 1 ratio M21 four speed Muncie 4 speed transmissions by
The Muncie 4 speed transmission was used with many different GM models and engine combinations from 1963 through 1974 The basic design and operation theory of the gearbox changed little during this period however several design upgrades and modifications were made during the total production run M 22 "Rock Crusher" Identification The M
Feel free to upload pictures and ask questions Some of the best Muncie builders participate on that page Muncie RPO Codes 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
RACING Muncie Slick Shift Clutch less Super Duty M23 Upgraded Ultra Case 4 speed Drag Racing Rock Crusher 2025 Spring SALE Rated out of 5 $ 4 Original price was $ 4 $ 3 Current Ultra Pro Super N24 Heavy Duty Ultra Case Muncie 4 Speed Gasser Race with Long V Gate Shifter Limited Quantity 2025 Spring SALE
Get the best deals for Muncie 4 Speed Transmission at We have a great online selection at the lowest prices with Fast & Free shipping on many items Muncie M22 Rock Crusher 4 Speed Close Ratio Transmission Driver Speedo Opens in a new window or tab Remanufactured $2 Buy It Now $ delivery 34 watchers
Doowopper I am putting a Muncie M20 4 speed in my truck to replace the 3 speed it had I know the Muncies are great transmissions I don t know about the "pulling heavy loads" If you use an M22 "Rock Crusher" you should be OK They can take a lot of torque They are pretty noisy though that shouldn t matter in a truck To some extent
item 4 Restored 68 70 Muncie M22 Rock Crusher 4 Speed Close Ratio With Unstamped Case Restored 68 70 Muncie M22 Rock Crusher 4 Speed Close Ratio With Unstamped Case $2 $ shipping item 5 GM Muncie 3885010 4 Speed M21 Close Ratio transmission
Find many great new & used options and get the best deals for Muncie Four Speed Rock Crusher at the best online prices at eBay Free shipping for many products Stone Crusher; Portable Rock Crusher; Muncie Overdrive; Muncie 4 Speed Parts; Mini Rock Crusher; Muncie Central; Crusher Metal; Additional site navigation About eBay; Announcements;
From 1963 thru 1975 hundred s of thousands of Muncie four speed transmissions were manufactured and placed in a broad range of GM cars Never in all that time was a Muncie transmission with an ultra steep gearset ever manufactured The new Muncie M 22Z four speed over drive transmission has been in the market place about two years now
The body was rust free Originally built in Van Nuys CA and sold new in La Puente CA All date code correct parts were used Some parts used on the build are original LS6 parts Correct 1970 4 bolt 454/450hp block M22 4 speed Rock Crusher Muncie transmission and original LS6 CRW 410 12 bolt posi traction rear end
NEW Auto Gear Super Case Muncie M22 4 Speed Rock Crusher 26/32spl Street/Strip Last 2 Days of Summer Sale Midwest Muncie M22 Rockcrusher Muncie 4 Speeds Feel free to kick my thoughts in the stones but I ve been under the impression for decades that a Super T 10 is superior to the M 20/21 M 22 coin toss again my opinion based
The M 21 is the close ratio 4 speed It was used on high performance models with numerically high rear end ratios The M 22 was the "rock crusher" It had the same gear ratios as the M 21 The VIN is stamped on the tranny The location may have varied I haven t looked at mine in a while so maybe someone else could be more specific
