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.

The Saginaw 4-speed transmission was also used and shown for "M20 PROD V-8 ENG & R.P.O. L30". Easily identified by the reverse gear being on the main case instead of the …

The symbol next to the number 4 is the foundry symbol. Many different found­ries were used for castings for the A-833 components. Many were in the northeast United States because of the location of the New Process Plant in Syracuse, New York. This case with the casting number of C-97372 lacks the VIN pad.

1967 - 1968 Muncie 4 Speed Transmission, M-22 Rockcrusher Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1967 - 1968 model Camaros. 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.

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. The M-22 was only produced in a close-ratio version, so …

"RockCrusher." I believe the reasons for bringing the T10 to the Muncie plant were threefold. ... Transmissions had to be geared to work with economy axle ratios such as a . Notice the difference in the drive slots of …

Muncie Date Coding. Many Muncie 4-speed main cases, extension housings, and side covers have a casting date code. On the main cases, the code is usually found on the …

When you find your automatic transmission and order from Transend you can expect the highest quality and largest selection of transmission and driveline parts. This search allows you to: Search for and identify your transmission by VIN, License Plate, or Year/Make/Model; Compare prices of remanufactured units; View available warranty …

Serial numbers are stamped into the case. It is a date code for when the transmission was assembled based on the model year, not calendar year. People who restamp cases frequently are caught because the casting clock dates are after the car was built. Serial numbers for Muncie … See more

Sorry but the only true way is to count each gears teeth. Now a "stamped" suffix was added in '69 or '70 and later years that would identify it as said before. This was stamped following the VIN production sequence number of car on drivers side of case just before the extention housing. BTW u could see if this stamped code matches ur VIN …

the rock crusher transmission gears are straight cut, you stand 300 yard away from a car with this trany and you will here it whine from any angle. plus on any high excelleration you can easily shift up through the gears with out using the clutch just slight ease off the gas, a trany mounted shifter will vibrate more than normal giving hand a …

Muncie also had a second close-ratio transmission called an M22, which enthusiasts christened Rockcrusher; this was used in performance big-block engines and Corvettes and is a highly sought-after performance transmission today, and is the heavy-duty version of the 2.20 ratio M21 4-speed. The later-model 1971-74 units are more …

May 20, 2023. To determine the transmission type of a vehicle by its VIN number, you first need to locate the 17-digit VIN code on the vehicle. Once you have that number, go to any website offering a free VIN decoder and enter in the 17-digit code. This will provide information about your car's make, model, engine size and other details ...

According to Paul Cangialosi, Muncie transmission historian, technician, and author of Muncie 4-Speed Transmissions: How to rebuild and modify, the Muncie four-speed transmission has its roots back to 1935 and the U.S. patent number 3,088,336 along with an engineer named James W. Fodrea.This patent number, according to …

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 holes on the side where a bolt will secure your shifter linkage levers. This is the Muncie M-22 Rockcrusher four speed.

Muncie Transmission Identification. The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963-1974. The basic design and operation theory of the gearbox …

The 4L60E is rated to handle up to 360 ft-lb (490 N⋅m) of torque. It weighs 133 pounds without transmission fluid. The 4L60E uses a 6.5″ depth bell with 6 bolts for non-gen 3 LS applications and a 7″ depth …

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 …

You can buy Muncie transmissions from GotTransmissions with high quality American made gears and bearings with a single phone call. The number is 866-320-1182. We have them in stock at affordable prices with an excellent warranty. Call now for immediate delivery. Tags: Chevy Transmissions, Manual transmissions, Muncie m22.

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. …

The bearing retainer slips over the input shaft and seals the transmission from the front. See All 34 Photos. Fully lubricate the detent levers and side arms with assembly lube. Move the spring ...

1969 - 1973 Muncie 4 Speed Transmission M-22 Rockcrusher Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1969 - 1973 model Camaros. This one will have the holes on the side where a bolt will secure your shifter linkage levers. This is the Muncie M-22 Rockcrusher four speed.

For the benefit of people reading this thread: The only way to be definitive is to either: 1. Chuck the trans in first gear and turn the output shaft 10 times. Count the number of times the input shaft turns. Divide that number by 10. This is your first gear ratio. Put trans in 2nd gear. Repeat procedure.

How To Decode The Transmission Type From Vin. Decoding the transmission type from the VIN requires understanding the structure of the VIN code. The VIN is a 17-character code that can be found on various parts of your vehicle, such as the dashboard, driver-side door jamb, or the engine block. The ninth character of the VIN is …

TH400 Transmission. The TH400 3-speed automatic transmission first appeared on GM passenger cars in 1965. For first-generation Camaros, it was only available in, and was the only automatic transmission for, big-block V8 engines. In 67 and 68, it was limited to the L35 325 hp and L34 350 hp engines.

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 …

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. The later model 1971-'74 …

Subsequent component changes made in 1970 changed the input shaft to a 26-spline(fine) and increased output shaft diameter to accept a T-400 trans. yoke. The final incarnation of the muncie lasted until 1973 when the transmission was taken out of service. 1969-1973 Typical date code: P9B08C P-muncie 9-1969 B-February 08-Eighth day C-M22

Step 1: Locate & Decode The Identification Number. As mentioned, reading the identification mark is the fastest option to recognize an authentic Borg Warner transmission. Check the second tail housing bolt (right above the clutch), and you will see a metal tag. The identification number should be visible on it.

GM 1963 to 1974 Automatic to Muncie 4-Speed Transmission Complete Conversion Swap Kit. SALE EXTENDED!!! Rated 5.00 out of 5 $ 5,399.00 $ 5,099.00 Add to cart. Sale! Super Pro Road/Race Muncie Upgraded Ultra Case M22 Rock-Crusher. SALE EXTENDED!!! Rated 5.00 out of 5