Chevrolet Rock Crusher Transmission

How to Identify a Muncie Four Speed

There also was a second, heavy-duty close-ratio version: the "Rock Crusher" (M22) that was offered on some of the high-performance big-block models, starting with the 1965 Corvette.

Know Details

Chevy Transmissions: Muncie 4 Speed M22 Rockcrusher..

"Where Our Customers Send Their Friends" 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 same gear ratios as the legendary M21 but with a heavy duty gearset.

Know Details

Muncie M21 and M22 Manual Transmission GM Overhaul …

M-21 close ratio, and the extra heavy duty close ratio" M-22, also known as the "Rock Crusher". The M-22 was generally installed behind severely powerful (high torque) big-block engines. The M-22 is distinguished from an M-21 by the angle of the gear teeth. ... T56 Borg Warner Manual Transmission Part; Chevrolet GM Trucks Manual …

Know Details

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 …

Know Details

Chevrolet Chevy Manual Transmission Identification and …

Go here for info on Chevy Automatic Transmission Identification. Muncie (left) Saginaw (center) Borg Warner (right) ... The M-20 wide ratio, the M-21 close ratio, and the "Extra heavy duty close ratio" M-22, also known as the "Rock Crusher". The M-22 was generally installed behind severely powerful (high torque) big-block engines. The M-22 is ...

Know Details

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

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.

Know Details

Chevy GM Muncie M22 Rock Crusher Wide Ratio 4 Speed Transmission …

Find many great new & used options and get the best deals for Chevy GM Muncie M22 Rock Crusher Wide Ratio 4 Speed Transmission 26 Spline at the best online prices at eBay! Free shipping for many products! ... item 6 M22 Muncie Main Shaft 32 Spline for Chevy Rock Crusher Aluminum 4 Speed M22 Muncie Main Shaft 32 Spline for Chevy …

Know Details

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.

Know Details

M22-Wide vs M22 "Rock Crusher"

In the beginning, the M-22 was the Heavy Duty Muncie, and it was available ONLY in the close ratio version (2.20:1 first gear ratio). The primary difference between the regular close ratio Muncie (M-21) and the HD Muncie was the angle at …

Know Details

Muncie 4 Speed Transmission for sale | eBay

MUNCIE 4 SPEED TRANSMISSION CHEVY PONTIAC OLDS 350 327 427 400 CAMARO NOVA 442. Opens in a new window or tab. Parts Only. $550.00. Buy It Now +$124.24 shipping. 16 watchers. ... Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo . Opens in a new window or tab. Remanufactured.

Know Details

GM Muncie 4-Speed Decoding : Drivin' It Home

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 it will not appear on models with high rear-axle ratios (3.55 or lower numerically) unless someone has changed it.

Know Details

1970 CHEVROLET CHEVELLE LS6 454 MUNCIE ROCK CRUSHER TRANSMISSION COWL

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.

Know Details

M-22 "rock crusher"

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. ... 70% of the guys at the gas station tells me this when I'm gassing up, they all had that rare 68 chevy with a corvette 327, rock crusher muncie and a 12 bolt posi that they would ...

Know Details

The Muncie 4 Speed Transmission Taught A Generation Of

The M22 'Rock Crusher' featured a one-inch countershaft pin bore and shot-peened gears with aggressive helix angles that reduced heat and stress but also …

Know Details

AutoHunter Spotlight: 1971 Chevrolet Camaro Z28

Featured on AutoHunter, the online auction platform driven by ClassicCars.com, is this restored 1971 Chevrolet Camaro Z28 powered by a 350 LT-1 backed by a Muncie M22 "Rock Crusher" four-speed manual transmission. Features include power brakes, front and rear spoilers, color-keyed sport mirrors, sport …

Know Details

1969

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 …

Know Details

Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher Style Transmission

This is a BEEFY version of the original Rock Crusher transmission. Most all the weak points of an original Muncie have been solved by the Super-Case design. The Supercase has extra casting in all the known weak areas. ... New Chevy 3899621 Bellhousing Kit with Cover, Fork, Bearing, Boot and more, 11" 1970 - 1972 Manual Transmission TCS …

Know Details

The 1965 Chevrolet M22 Rockcrusher Transmission: The Mystical Transmission

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 assemblies to Chevrolet's 1965 transmission identification codes, I found a perfect match.

Know Details

How To Identify Chevy Four-Speed Transmissions

The Muncie four-speed was produced in two ratios: the wide ratio (M20) and the close-ratio (M21). That being said, there was a second, close-ratio version (M22) …

Know Details

How to Identify a M22 Rock Crusher | It Still Runs

You can identify several unique signs that identify an M-22 "Rock Crusher," even if it does not have a GM hallmark imprinted on its surface. Step 1 Check the casting number, the …

Know Details

Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4 …

STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR ULTRA CASE With The Strongest M22z ULTRAWIDE RATIO 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 plugs. C355 …

Know Details

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 pushing in the clutch. ... It was a …

Know Details

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

American Chevy Muncie Transmission Parts – M20, M21, & M22. ... 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. In 1964, the aluminum front bearing retainer was replaced with a ...

Know Details

Chevy Transmissions: Muncie 4 Speed M22 Rockcrusher..

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 …

Know Details

This is why the 1970 Chevelle SS 454 LS6 was Chevy's …

Transmission and Rear Axle. The Chevelle SS 454 LS6 was available with 2 transmission options. The Muncie M22 (Rock Crusher) 4-speed manual and the 3-speed Turbo Hydramantic 400. A heavy-duty 12-bolt axle was standard with the buyer's choice of 3.31 or 4.10 gears. M22 Gear Ratios. 1st Gear2.20; 2nd Gear 1.64; 3rd gear 1.28; 4th …

Know Details

Brand New SUPERCASE M22 4-Speed Muncie Rockcrusher Style Transmission

This a BRAND NEW SUPERCASE M22 Muncie Rockcrusher Style Transmission. This is a BEEFY version of the original Rock Crusher transmission. Most all the weak points of an original Muncie have been solved by the Super-Case design. The Supercase has extra casting in all the known weak areas. The mid plate is aircraft grade aluminum.

Know Details

M-22 "rock crusher"

Then, in 1966, the M22 (HD close ratio) became an RPO (regular production option) transmission. Because the angle at which the gear teeth were cut was less than …

Know Details

M22 4 speed rock crusher | Team Chevelle

M22 4 speed rock crusher. ... TX Chevelle so the P0C23C transmission assembly date and 3978766W0 tag fit. Put the transmission in 2nd gear and remove the side cover to view the helix angle of the gears and the condition of the synchro engagement teeth. ... A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. …

Know Details

The 1965 Chevrolet M22 Rockcrusher Transmission: The …

By comparing these M22 transmission assemblies to Chevrolet's 1965 transmission identification codes, I found a perfect match. This transmission …

Know Details

Transmission Parts and Components | Chevrolet Performance

Complement your Chevrolet Performance transmission with a factory-matched torque converter, transmission controller, and installation kit. Ride more comfortably in your …

Know Details