In 1966, the M-22 Rock Crusher transmission was available ONLY with the L-72 427-450-425 horsepower engine. ALL M-22 transmissions had magnetic drain plug installed at the factory. ALL M-22 transmissions had magnetic drain plug installed at the factory.
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
"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.
WhatsApp: +86 18221755073
The Z28 would morph from its SCCA roots to come with a Corvette-based LT1 350 V8 that produced a neck-breaking 360 hp with 380 ft/lbs. of torque. This '70 Z28 has been restored across its last two owners and has the highly desirable …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
I explain this in detail, because like so many BS stories that have occurred over the years, the M22//Rock Crusher is one of them that continues to be perpetuated by "armchair" experts. Originally, the M22 was ONLY a close …
WhatsApp: +86 18221755073
Sitting underneath the hood is a behemoth 396 C.I. big-block V8 breathing fire through a 4-barrel carburetor, this '69 Chevelle is a monster on the street. Torque is stomped into the pavement through a correct Muncie M22 "Rock Crusher" 4-speed manual transmission, which allows for both quick shifting and plenty of smiles behind the wheel.
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
1969-1974 codes include a suffix letter at the end to aid in identification of transmission ratios. A = 2.52 1st gear wide ratio M20, B=2.20 1st gear close ratio M21, C = 2.20 first gear Rock Crusher M22. One example code would be ( P0E21 A ) which reads: Muncie four speed aluminum for passenger car, 1970, May, 21st, ratio M20.
WhatsApp: +86 18221755073
The M-21 is the close ratio 4-speed. It was used on high performance models with numerically high rear end ratios. The M-22 was the "rock crusher".
WhatsApp: +86 18221755073
If you've ever driven a classic muscle car equipped with a four-speed manual transmission, you probably experienced the joys of commanding a Muncie Rock Crusher. Some classic 1960s General Motors ...
WhatsApp: +86 18221755073
The final main case casting of 3925661 was introduced, but there are huge overlaps in date codes. This means a transmission could be assembled in April with a 3925661 case and then in July with a 3925660 case. The introduction of the transmission controlled spark (TCS) switch on the Muncie sidecover seemed to appear in 1970.
WhatsApp: +86 18221755073
C1 & C2 Corvettes - M-22 Rock Crusher - I am putting a 383 stroker in my 66 Coupe. I have a 3:55 rear end in the car and it has been suggested that I replace my transmission (which I was going to do anyway) with a M-22 rock crusher. ... CorvetteForum - Chevrolet Corvette Forum Discussion; C1 & C2 Corvettes, 1953 - 1967; C1 & C2 Corvettes ...
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
The most well known Muncie transmissions are the M20(wide ratio), M21(close ratio), and the M22(rock crusher). Although not mentioned much, there was also an M23 transmission that was used, beginning in 1970.
WhatsApp: +86 18221755073
M20: This is often recognized as the standard, wide-ratio transmission. It's designed for more leisurely driving and good torque at lower RPMs. M22: Known as the "Rock …
WhatsApp: +86 18221755073
Plan and track work Code Review. Manage code changes
WhatsApp: +86 18221755073
Muncie M20 4 speed transmission Nice condition and looks to be freshly rebuilt Do not know its history but looks ready to run ... rat rod, 3 speed, tranny, trans, manual, muscle car, c10, f100, bbc, sbc, Chevy, rock crusher, shifter, m21, m22 post id: 7829221523. posted: 15:52. ♥ best of . Avoid scams, deal locally Beware wiring (e ...
WhatsApp: +86 18221755073
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 ...
WhatsApp: +86 18221755073
GTO 3-Speed Transmission, 1972 GTO, Heavy Duty 3-speed transmission, Dearborn, Muncie, M13, M12, Muncie M20, M22 rock crusher, Auto Round-Up MagazineA: L.C., thanks for the nice words. The transmission listed on the build sheet you sent me is indeed the Heavy Duty 3-speed transmission I spoke of in the a recent Auto Roundup/Car Collector …
WhatsApp: +86 18221755073
By comparing these M22 transmission assemblies to Chevrolet's 1965 transmission identification codes, I found a perfect match. This transmission identification code …
WhatsApp: +86 18221755073
C1 & C2 Corvettes - M-22 vs. BW ST-10 - How does the Muncie M-22 rock-crusher trans compare to the Borg Warner Super T-10 Power Brute transmission (the ones with a nodular iron case and high nickel gears that were offered as over the counter replacements in the 70's and 80's?? Strength, durability, ease of...
WhatsApp: +86 18221755073
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.
WhatsApp: +86 18221755073
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. Come join the ...
WhatsApp: +86 18221755073
Vehicle history and comps for 1967 Chevrolet Corvette Roadster w/ Hardtop VIN: 194677S114443 - including sale prices, photos, and more. Find Search Listings. 756,264 ... Genuine Accessories: From the Packard plug wire, the correct '67 4-speed M22 rock crusher transmission, to the fresh air box L88 hood and L88 radiator, every accessory ...
WhatsApp: +86 18221755073