Crusher Transmission

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Muncie 4-Speed: The Complete History

If you attach a small-retainer transmission to a large-bore bellhousing the transmission is not piloted correctly. Typically, the front bearings shatter and input shafts break teeth, usually at the end if this mistake is made. This adapter retainer can be used to attach a 1963 Muncie to a later bellhousing. You can also turn down the outside ...

How to Identify a M22 Rock Crusher

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 ...

GENERAL MOTORS MUNCIE 4-SPEED MANUAL …

4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS APPLICATIONS: GENERAL MOTORS 1963-1974 GENERAL MOTORS (HIGH PERFORMANCE) AUTO GEAR EQUIPMENT ... L26-s36T: M22 'Rock Crusher' (1971-74) 3978761 WT297-16Z NOTE: these (3) gears used with 26 spline clutch. B2-2 Maindrive Oil Slinger all 3925692 3925762

When was the M22 first called "rock crusher"?

The first time I heard the term "rock crusher" was in reference to the transmission in the 1967 L88 Corvette. Due to the low gear angle there is a fair amount of gear noise, really like a medium / heavy duty truck transmission. True enough the M22 did trickle out the door in 1965-67 and was buried in the option lists.

Muncie 4-speed Transmissions | The Online Automotive

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 highly sought-after for performance applications. The term "rock crusher" refers to the noise made by the meshing of the stronger helical gears in the ...

Terra Crusher Transmission

hi, i have just started on the nitro scene with a terra crusher of my mates, he had it sat around for years and i have brought it back to life, i am having some trouble with it though. dont have most of the original guides so i …

The Rarest Muscle Car Transmission In The '60s

The M22 used the same close ratios as the M21 gearbox. However, compared to the M22, the M22 Rock Crusher from 1966 was a high-performance gearbox that was even more durable. The M22 Rock Crusher used straight-cut gears (usually used in racing gearboxes), which led to its signature transmission whine, earning the "Rock Crusher" name.

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." By comparing these M22 transmission …

Muncie 4 Speed Transmissions

It was primarily designed as a road race transmission. The straighter angle of the gearset produced less heat and less end loading of the gear train. Combined with high impact alloy gears this 4 speed really pushed the limits of it's aluminum …

Muncie Parts

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.

New Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher

STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR Upgraded Ultra CASE With The Strongest M22w WIDE RATIO or Close Ratio Gears for a 4 SPEED TRANSMISSION. A GREAT HEAVY DUTY ROCKCRUSHER FOR YOUR CAMARO, NOVA, CHEVELLE, CORVETTE, GTO,442. THE MAIN CASE IS THE STRONGEST MADE with fill and drain…

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.

Chevy Transmissions: Muncie 4 Speed M22 …

Chevy Transmissions: Muncie M22 "Rock Crusher 4 Speeds were made From 1965 TO 1974: The most popular transmission of it's time for high performance cars built for Chevrolet and all performance oriented G.M cars. They have the …

Firebird Central | 1969

1969 - 1973 Firebird Muncie 4 Speed Transmission Rockcrusher M-22 Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. Correct fit for all 1969 - 1973 model Firebirds and Trans Ams. This one will have the holes …

The Story of the Mighty & Majestic Muncie 4 …

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 …

Muncie four-speeds | The Online Automotive Marketplace

The 2.56:1 ratio is commonly referred to as the M20. 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 M22 4 Speed Muncie Manual Transmission

We have a large inventory of rebuilt M21 & M22 Manual Transmissions plus transmission parts. Our factory rebuilt re-manufactured transmissions are dyno tested before leaving the factory, ensuring the highest quality, We offer a no hassle 12 month warranty, performance guaranteed. The M21 & M22 is a four speed, RWD or 4WD transmission.

Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road …

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. Holiday SALE !!! Jeff Collins on Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. Holiday SALE !!! Thomas N. on Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road …

NEW Muncie M22 SUPER ROCK CRUSHER 4 speed …

Transmission Yokes: M5R1 / M5R2: Clutch Packs: GEARBOX TEE SHIRT: Miscellaneous: Discontinued, Used, Sale. 1st gear: Shipping: Contacts: Instructional Videos: MT82: Muncie Parts > NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. View Images. Price: No Price: Sale Price: No Price:

Complete Guide to Muncie Transmissions

Many people know about Muncie transmissions and the famous M22 "rock crusher" transmission that has straighter cut gears that allows you to bang the gears without …

What is a rock crusher transmission?

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 …

Guide to Muncie M20, M21, and M22 Four-Speed …

According to Paul Cangialosi, Muncie transmission historian, ... 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 from 1963-'74 are easy to identify in both wide- and close-ratio units. The M22 to come later in 1967-'74 is also a close ...

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.

Mastering GTO Restorations: Transmission Guide

A properly set up M-22 Rock Crusher transmits up to 700 hp, so this stout transmission is a wise choice for high-performance applications as well as authenticity. But that is not a definitive method for positively identifying the transmission.

M22 Identification

This bumbed me out since I had previously read that this was an indication that it was a Saginaw not a Muncie. It does have a 7 bolt side cover. Doe this mean it's still an M22 but just manufactured at the Saginaw assembly plant or it's not an M22 "Rock Crusher Transmission". I am just learning !

M-22 Rock Crusher 4-Speed Transmissions by …

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 …

Muncie 4-speed

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 tail housing. The proper Hurst Competition Plus system for …

Comparison of 2 Crusher Transmission Modes

The following compares the two crusher transmission modes from various aspects. 1. V-belt drive. The V-belt drive is a widely used form of mechanical transmission. The V-belt drive uses the V-belt tensioned between the driving pulley and the driven pulley as an intermediate flexible member and transmits power through the frictional force ...

'69 Z28 Transmission

I have a '69 Z28 with a M-21 transmission, and I was told that it was the correct 4speed that came in the car from the factory. Is the M-21 the same as what they call a Rock Crusher? Is the VIN# located on the transmission to verify it's correct and if so where's it located? Thanks, Donnie.

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