Thomas N. on Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. SALE EXTENDED!!! Michael Coons on NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. SALE EXTENDED!!! Brett Henson on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. …
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.
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 …
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. It also has a 6,500 rpm redline …
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 …
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 which the gear teeth were cut.
11 product ratings - Muncie Close Ratio - M-22 Rock Crusher Four Speed Transmission - ALL NEW GEARS. $2,695.00. Buy It Now +$110.00 shipping. Last one. 62 sold. Sponsored. naz130 (5,353) . 1968 - 1970 Muncie Transmission Main Case 3925660 4 Speed. Opens in a new window or tab. Parts Only.
On the left is the M20 countershaft and 10-spline input shaft. In the middle is the M21 countershaft and input shaft. On the far right is the M22 26-spline input shaft. In the 1970s, virtually all Muncie four-speeds had 26-spline …
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 M22 Rock Crusher Is The Rarest 1960s Muscle Car Transmission In the 1960s, the rarest muscle car transmission was the M22 'Rock Crusher' 4-speed manual gearbox. While it is not well documented, it is estimated that between 1966 and 1974, only 500 to 1200 cars were equipped with the M22 Rock Crusher transmission, making it rare.
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 M23 Upgraded Ultra …
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, like pictured. This is the Muncie M-22 Rockcrusher four speed.
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 strong-er helical gears in the M22.
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. The M23 is recognized by a 26-spline(fine) input shaft and a large output shaft that requires a T-400 driveshaft yoke.
I have a suspicion that rock crusher may have first been used in a late-1960s auto magazine test drive, but was hoping the historians in this group might be able to narrow it down. ... OF THE SAME ERA (ie 66-7, 68-9, 70-74) ALLLLLLLLLLLL Muncie cases had the SAME casting number, REGARDLESS if it was an M20 or an M21 or an M22. The casting ...
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!
There are not any more used Muncie transmissions from that era available without getting lucky. You can buy Muncie transmissions from GotTransmissions with high quality American made gears and bearings …
MUNCIE 4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS APPLICATIONS: GENERAL MOTORS 1963-1974 GENERAL MOTORS (HIGH PERFORMANCE) ... 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
How to Identify Muncie 4 Speed Transmissions. ... Since they used a dummy car for inside dialog shots you miss the flavor of the M22 in that flick. The dead 2.20 first gear ratio which is the same in the M21 is not that good for off the line acceleration. You would need at least a 4.56 rear end gear to compensate for the dead first gear.
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 …
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.
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…
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. ... Since the Muncie transmission plant did most of their own prototype work, they had a ...
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.
come guys, every gearhead knows every muncie is a rock crusher, every 327 came out of a corvette and all 12 bolts are posi's! I didn't even read this on the internet, 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 ...
Also, there's companies out there that are making new gear set's for Muncie's as well..not just stock replacement stuff either. You can outfit an M20 or M21 with Rock Crusher type gears, OR actually make a 3 speed O/D out of a 4 speed case. Forth being the overdrive obviously.. Kinda nice if you want the Muncie look and an overdrive..
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. Please scroll down to order extras (cluster pin, wrench,sliders etc) From $144.30
Muncie shifter shafts have evolved in three basic stages. From the left, the small 5/16-18 threaded stud, which snapped easily. The newer 3/8-24 stud still had to fit the rectangular keyway of the linkage arm, and so it had flats milled on each side, but they still broke. The last revision was a bolt-on shaft using a standard 3/8-16 threaded ...
The Muncie M22 is known as the Rock Crusher. See how we improve its strength and versatility by adding a Gear Vendors Overdrive. Cam Benty Writer John McGann Photographer Nov 04, 2022
Find many great new & used options and get the best deals for Make OFFER - Muncie M22 4 Speed Transmission Rock Crusher Complete Package at the best online prices at eBay! Free …
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