1969 - 1973 Muncie Four Speed Transmission M-22 Rockcrusher Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1969 - 1973 model Chevelles and Novas. This one will have the …

The Muncie has been the most transmission among the hot rodding set since its inception in 1963. The Muncie was used in all high applications until the Borg-Warner Second Design Super T-10 began replacing it in 1974. We want to clarify all information on the Muncie in the years 1963-65, which was the early run of the Muncie.

Muncie M22 Rock Crusher Second Gear $ 115.00 Add to cart; Muncie M22 Rock Crusher Front Reverse Idler $ 54.00 Add to cart; Muncie 4 Speed Rebuild Kit 7/8″ w/207 Bearing $ 199.00 Add to cart; Muncie M20/M21 Front Reverse Idler Gear $ 49.00 Add to cart; Technical Resources. Competition Plus Catalog;

 — If the transmission is in the car, and there is NOT a part number tag attached to one of the side cover bolts, NO, there is no way to tell if it is an M20,M21, M22. ... they all had that rare 68 chevy with a corvette 327, rock crusher muncie and a 12 bolt posi that they would shift from first to second around 60 mph. jim . Jim 70 chevelle, SS ...

 — Find many great new & used options and get the best deals for M22 Muncie Main Shaft 32 Spline for Chevy Rock Crusher Aluminum 4 Speed at the best online prices at eBay! Free shipping for many products!

The T stands for December and 13 is the day. To confirm this simply look at the VIN number. It will usually begin with a 18S101350 or a 28N12950. This means the Muncie was assembled December 13, 1967 for the 1968 model year. The VIN number will usually be a low number. 1969 to 1974 Muncies got a ratio designator at the end of the serial number.

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 …

 — Muncie M22 Rock Crusher Transmission "Old Man Engineering" - $1,995. Jul 8th 2024 1126 1 Show phone number $1,995. Listing Number: 184608119. Report this listing. SWAINSBORO, GA, United States No trades …

 — The Muncie four-speed transmission was heralded by many as an "indestructible" four speed used by General Motors, and found its way into many different car models, behind various engine combinations between 1963 and 1974. ... and was known as the "Rock Crusher." This version was offered in high-performance big-block …

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 ...

How to Identify Muncie 4 Speed Transmissions. 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 …

 — New M22 Gear Set. Close ratio. Rock Crusher. This gear Set has all 3 speed gears, 1st, 2nd, & 3rd, the cluster, input and the reverse idler gear. Available in Close ratio, 10 spline Coarse or 26 splined fine.

We also offer muncie rebuild kits, racing parts and m22 rock crusher transmissions. ... Garry Brown on Super Pro Road/Race Muncie Upgraded Ultra Case M22 Rock-Crusher. SALE EXTENDED!!! Michael wilhelm on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to 3.42 Rear End Gears.

 — Is there a way to tell if a muncie fourspeed is actually a M-22? Would I be able to tell by any serial numbers on it? Thanks.-Dan

M-22 "Rock Crusher" Identification The M-22 close-ratio transmission is easily identified internally from the M-20 and M-21 versions by the angle of the gear teeth.

Recent Comments. Randall D Resler II on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to 3.42 Rear End Gears. SALE EXTENDED!!! Jeff Collins on Muncie Super Duty M23 …

Browse a wide selection of new and used Crusher Aggregate Equipment for sale near you at Find Crusher Aggregate Equipment from SUPERIOR, LIPPMANN, , and more ... Serial Number: TRX117693313 ... ROCK MACHINERY 7675 Pamperin Way Allenton, WI 12912 12th St, Osseo, WI. Email Us Call Us. QUICK …

 — A:Zack, I am excited that you and your father are working on a project car together.This is what makes the car hobby so great. The Muncie four-speed transmission was used with many different ...

 — 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. ... The last 3 numbers of the casting number on the main case were milled off and 3 new numbers were STAMPED in the place of the removed …

 — 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 …

To understand the evolution of the Muncie 4-speed you have to look at a series of engineering platforms that led to the final design of this transmission. The Muncie design has roots going back to 1935. I took the time to research the patent number that is cast into most Muncie main cases. It is U.S. Patent Number 3,088,336 (see Appendix).

 — This sheet lists by model year, each M22 assembly shipped from Muncie with accumulative totals across the bottom of the page. Across the top of the page are …

Muncie 4-speed Transmission (Group 4.000) - Casting Numbers. (1) All M22 applications except 454 engine. (2) All 454 Chevelle applications. The M22 was produced in 1973 …

 — The early production Muncie four-speed case is the small-bore unit and can be identified by the GM casting number 3831704 (see Muncie M20/M21/M22 Main Case Identification chart). The large-bore Muncie came into production in 1964-'65 and became the standard from then on through the end of production in 1974. ... The M22 Rock …

The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963 through 1974. ... (numerically lower) used wide-ratio transmissions. In addition, many GM high-performance engines came with M-22 "Rock-Crusher" in the 1970-73 years, however an early version of the M-22 was available as early as 1965 in ...

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 …

 — 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 3925858) All the sites I have visited are telling me the case number should be …

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 …

The M22 was eventually dubbed the "Rock Crusher". It is a common misconception that all Muncie transmissions are "Rock Crushers", but it is only the M22 that deserves that name. The M20 and M21 were both release in 1963, but it wasn't until 1965 that the M22 hit the market. The M22 was created for the Corvette Grand Sport racing program.

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" …