Muncie 4-speed Transmissions | The Online Automotive …

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 …

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Muncie M22 Rock Crusher 4 Speed Transmission for sale

Muncie M22 4 Speed Rock Crusher Gear Kit - Input Cluster 1st 2nd 3rd Idler Gear. Opens in a new window or tab. Brand New. $599.00. Buy It Now. Free shipping. Sponsored. acerl (41,910) 98.5%. New 2 PCS Shift Forks Fits GM Muncie M20 M21 M22 Chevy 4 speed WT297-23 / 304841. Opens in a new window or tab. Brand New. $36.28.

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Auto Gear Upgraded Ultra Case M22Z Rock …

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!!! ... NEW Auto Gear Upgraded Ultra Case Muncie …

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American Chevy Muncie – M20, M21, M22 | Allstate Gear

Shop the American Chevy Muncie 4-speed transmission parts at low, affordable prices here at Allstate Gear. View more. ... The M22 "Rock Crusher" followed four years later. It uses stronger components to handle big-block power. The original M20 was only offered for one year. It has the GM casting number "3831704" on the case.

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Muncie 4-Speed Speedway Driveshaft Slip Yokes Parts

Shop Muncie 4-Speed Speedway Driveshaft Slip Yokes Parts and get Free Shipping on orders over $149 at Speedway Motors. Talk to the experts. Call 800.979.0122, 7am-10pm CST, everyday.

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Going from 700R4 to Muncie 4-speed '31 Coupe

I am considering for the winter project, to remove the current 700R4 auto tranny, and install a 4-speed Muncie (M21 or M22?). The car is a '31 Model A coupe, with '32 frame, and Ford 9" rearend, Chevy 350 motor. Are there suggestions out there what kind of 4-speed may fit better, and are there "kits" for installing a 4 speed into this car ...

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انتقال نیرو توسط میله های دایره‌ ای – به زبان ساده

نیروی به وجود آمده در این سیستم‌ها توسط حرکت دورانی شفت به قطعات دیگر منتقل می‌شود. میزان نیروی انتقال‌یافته به مقدار گشتاور پیچشی و سرعت چرخش بستگی دارد.

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M21 M22 4 Speed Muncie Manual Transmission

The M21 & M22 is a four speed, RWD or 4WD transmission. The M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. The …

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The Muncie 4 Speed Transmission Taught A Generation Of

By the time the Muncie was in its final phase of production (1971-1974) it also gained a 32 spline output shaft in place of the original 27 spline unit. Wide, Close, or Rock Crusher Initially there were two specific Muncie transmissions available: the M20 wide-ratio (2.56:1 first gear) and the M21 close-ratio (2.20:1 first gear).

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NEW Auto Gear Upgraded Ultra Case Muncie HD …

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 …

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Muncie 4-speed

1964 to 1968 Muncie 4-speed transmissions can be identified from later models by the way the transmission arms attach. Early Muncie side covers had a stud and the shift arm attached with a nut on the stud while the 1969 and later model side covers had a hole and the shift arms attached with a bolt.

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69 DZ302/M22/4.56 Gears....Thinking of Gearvendors...

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 …

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Muncie 4-speed Transmissions

Muncie 4-speed Transmissions | Hemmings Motor News 4/29/13 4:45 PM ... The term "rock crusher" refers to the noise made by the meshing of the strong-er helical gears in the M22. Later model 1971-'74 Muncies are also popular with racers, because these transmissions used a

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The 1965 Chevrolet M22 Rockcrusher Transmission: The …

Across the top of the page are the words "First Build 4/15/65 – 1st Shipment 4/19/65, recap of M22 (Rock Crusher) Trans." ... The 1964-65 Muncie transmission main case casting number was #3851325. ... On this document the 4 speed transmission option code listed the transmission as an M20.

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How much power can a Muncie 4 speed handle

My daily is a 6 speed. I believe the m22 can take about 500 foot lbs....but if you get it hook around 1.6 to 1.5 60 foot times....its going to break. I had a M21 with …

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Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher …

This a BRAND NEW SUPERCASE M22 4-Speed Rockcrusher Style Transmission. Each new Auto Gear transmission is built from genuine Auto Gear parts, the highest quality available. This is a BEEFY version of the original Rock Crusher transmission.

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Muncie 4-Speed Identification Guide

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 …

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Muncie four-speeds | The Online Automotive Marketplace

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.

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Muncie M22 4 Speed Rock Crusher Gear Kit

Muncie 4 Spd Car M22 "Close Ratio" Gear Kit This M22 Gear kit will have a 1" Countershaft pin, 16 Spline input, Close Ratio 2.20 1st gear. The kit will include the Input shaft (4th gear), Countershaft, 1st gear, 2nd gear, 3rd gear, and Reverse Idler. Input- 26 Tooth 26 Spline Close Ratio Counter Shaft- R27-22-19-17 Big 1" Pin Close Ratio 1st …

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M-22 Rock Crusher 4-Speed Transmissions by JetBoatBill

NEW DESIGN MUNCIE M22 ROCK CRUSHER CLOSE RATIO 4 SPEED. THIS IS THE M-22 TRANSMISSION THAT GM COULD NOT BUILD! Newly designed STATE-OF-THE-ART Muncie front case from "Auto Gear". This is by far the "BEST" replacement aluminum case ever built for a Muncie! The front bearing is a "SEALED" bearing, and slightly thicker …

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Ultra Pro Super N24 Heavy Duty Muncie 4-Speed.

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 …

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Muncie Parts

NEW Upgraded Muncie M20 4 speed $2498.00. No Price NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. No Price Muncie Overhaul Kit. Complete overhaul kit for Muncie 4 speed transmissions. Must specify if your transmission has a 1" or 7/8" cluster shaft (pin) 7/8" kit comes with NON stepped synchronizer rings

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How to Identify a Muncie Four Speed: Build Date Codes

2. 04 represents the month code when the unit was assembled, April. 3. 21 represents the day of the month the unit was assembled, the 21st day of April.

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Muncie M22 Rock Crusher 4 speed

Muncie M22 Rock Crusher 4 speed. Jump to Latest 31K views 6 replies 5 participants last post by 302 Z28 Aug 20, 2003. T. Turkey Discussion starter 23 posts · Joined 2001 Add to quote; Only show this user #1 · Feb 22, 2003. Can someone tell me how much a muncie m22 rock crusher is worth this transmission was produced buy …

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How to Rebuild a Muncie Four-Speed Transmission

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.

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4 Speed

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!!! ... NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. SALE EXTENDED!!! Rated 5.00 out of 5 $ 3,499.00 $ …

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Muncie M22 "Rock Crusher" 4-speed

A photo from when the last Muncie M22 "Rock Crusher" 4-speed came off the assembly line. A legend for toughness during the muscle car era, its 400 lb-ft torque factory rating limits what it can handle with modern performance. The whining of these transmissions was very distinctive. This is the transmission I have in my…

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Complete Guide to Muncie Transmissions

GM's goal with the Muncie four-speed was to produce a better shift employing larger synchro cones. He tells us both the M20 wide-ratio and M21 close-ratio transmissions were first offered in 1963. The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet's big-blocks in the mid-1960s.

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The Story of the Mighty & Majestic Muncie 4 Speed …

From 1963 to 1975 General Motors used a transmission in many of their muscle cars known as the Muncie 4 Speed. It was the transmission of choice for practically every performance-engined car made during the muscle-car heyday. ... The M22 was eventually dubbed the "Rock Crusher". It is a common misconception that all Muncie transmissions are ...

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Muncie 4 speed....M21, M22, Rock Crusher?

I was just wondering how many different variations there are of the Muncie 4 speed and which ones are best and for what reason (s). I currently have an M22 Rock …

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Muncie 4-Speed: The Complete History

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).

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1967

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 from the side where your shifter linkage mounts. This is the Muncie M-22 Rockcrusher four speed. Designed for the highest performance models.

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Complete Guide to Muncie Transmissions

The Muncie transmission is a bit outdated by today's standards with no overdrive, but still holds a place in the restoration and sentimental value markets. Many …

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NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4 …

AG Roller Side Cover. A great Super Heavy Duty Rock Crusher M22 for your Camaro, Nova, Chevelle, Corvette or other GM car. Close Ratio = 2.20-1st, 1.64-2nd, 1.28-3rd, …

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Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher …

This a BRAND NEW SUPERCASE M22 4-Speed Muncie Rockcrusher Style Transmission. Each new Auto Gear transmission is built from genuine Auto Gear parts, the highest quality available. This is a BEEFY version …

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Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher …

Each new SuperCase transmission is built from the highest quality available. Includes all the goodies: SuperCase, gear ratio choice, heavy-duty set with a oilite bushed side …

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