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3 Muncie 4 speeds were offered. 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 distinguished from an M-21 by the angle of the gear teeth. The M-22 has "straight cut" gears.
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The crossmember will need to be moved almost 9 inches toward the rear of the Chevelle. Manual Transmissions. ... the M20, M21, and M22 (the Rock Crusher). Many think all fine-spline Muncies are ...
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It seems they tooled up and built their own after '67 or '68. None of the old …
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I believe the pass side. Will start with a "P" For example P0C13C Starting in 69, the date code also has the ratio designator letter on the end. A = M-20, B = M-21, C = M-22. There should also be a partial VIN in the same general area. If it's the original trans, should match the VIN of your car. P = Muncie Pass Car.
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Now the "rarest" of the M22 transmissions is the "stone crusher". I remember a few clueless dealers using the "M22 stone crusher" in their less than intelligent ad copy. My 1970 SS454 LS6 SuperCar certified stock appearing 11.90@113 MPH [. My 1964 Big Block Corvette Gasser.
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GM vehicles with a Turbo 350 or Powerglide automatic can use a Muncie 4-speed without having to modify your original driveshaft. Other GM automatic transmissions sharing the same 27-spline output …
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4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS APPLICATIONS: …
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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) …
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69 Chevelle SS396 L78 4-speed, Post Sedan, Black W/black vinyl bench seat. (Under restoration) 69 Chevelle SS396 L78 4-speed Post Sedan, Silver, black vinyl bench seat. Berger car 70 Chevelle SS454 LS6, M22, 4.10, Forest Green, Green buckets. (Nearing completion) 69 Chevelle SS 396 L35 Post Sedan, Silver, Blue bench, 4-spd (Sold)
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Michael Coons on NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. BLACK FRIDAY WEEK SALE!!! FREE SHIPPING!! 11/20 to 12/1 (To Lower 48 States) Brett Henson on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to 3.42 Rear …
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January 25, 2022. 4 speed, four speed, identify, manual, muncie, transmission. How To …
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Early Muncie 4-Speed Identification. The Muncie has been the most transmission among the hot rodding set since its inception in 1963. The Muncie was used in all high applications until the Borg-Warner Second Design Super T-10 began replacing it in 1974. We want to clarify all information on the Muncie in the years 1963-65, which was the early ...
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The M22 Rock Crusher 26-spline input shaft sports a wider gear for greater torque capacity. Just because you've found a 26-spline input shaft does not mean you've found an M22 input shaft, which is made of a stronger alloy. The standard 10-spline input shaft found its way into new Muncie M20 and M21 transmissions from 1971-'74. 9.
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1964 to 1968 Muncie 4-speed transmissions can be identified from later models by the way the transmission arms attach. ... thus the nickname "Rock Crusher" was born. Another misconception is if you have a drain plug you have a M22. ... Although the M22 was available in the Chevelle model, records indicate that no Chevelle was ever fitted with ...
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1966 Chevy Chevelle M20 Wide Ratio Muncie 4 Speed Transmission Core 3885010. Opens in a new window or tab. Pre-Owned. ... 1970 M22 Rock Crusher Muncie 4 Speed Transmission Case 3925661 Corvette Chevelle. Opens in a new window or tab. Pre-Owned. ... 1957 Chevy Bench 1968 Muncie 4 Speed Transmission Mr. Gasket Shifter w/Linkage. …
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Muncie 4-speeds were produced in two different ratios wide ratio (M-20) and close-ratio (M-21). An extra heavy duty close-ratio version (M-22) was also offered on many of the big-block high-performance models.The choice of transmission was dictated by the engine size and rear-axle ratio. Axle ratios of 3.73 and lower (numerically higher) came ...
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L36-s36T: M22 'Rock Crusher' (1964-74) 3924796 WT297-12B NOTE: these TWO (2) gears w/o snapring counterbore on cone end: used w/o thrust washer. ... (1968-74) 3915020 3915020 B6 Maindrive Retainer Gasket for 207 bearing (1963) 591023 591023 for 307 bearing (1964-74) 3915019 3915019 B7 Maindrive Retainer Fasteners 3/8-16 x 3/4 HHCS …
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Camaro, Corvette, Chevelle, Nova. December Xmas Sale!!! Brett Henson on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to 3.42 Rear End Gears. ... C355 Forged Aluminum Mid-Plate. Super Tail. AG Roller Side Cover. A great Super Heavy Duty Rock Crusher M22 for your Camaro, Nova, Chevelle, Corvette …
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1968, 1969: Passenger Corvette Chevy II Chevelle Camaro: 3925660** 3857584: 3884685(1968) 3950306(1969) 3915020 *The 3846429 extension was manufactured in two versions, a "thin rib" and a "wide rib." **Muncie data shows 1968 and 1969 M22 received maincase #3925661. All documented M22 transmissions have the #3925660 maincase. …
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Information and parts are provide for the following Transmission: Muncie M21 / M22 4 Speed (RWD), an illustrated parts drawing for the M21 is provided. IDENTIFICATION - Aluminum case, extension housing and side cover. The side cover has 7 bolts and 2 shifter cams. The synchro rings have 36 teeth and the unit has a 4-step cluster gear.
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One of the more unusual transmissions fitted to C3 Corvettes was the Saginaw manual 3-speed transmission (2.85 first, 1.68 second, and 1.00:1 third). They were part of the standard equipment base price for all 1968 and 1969 Corvettes. The 3-speed was installed behind the standard 300-hp 327-ci engine in 1968 and the 300-hp 350-ci engines in 1969.
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This is a Very Rare and Completely and Freshly Rebuilt Original REAL 1965 65 1966 66 1967 67 1968 68 1969 69 and 1970 70 GM Chevy, Corvette, Camaro, and Chevelle M22, (M-22), Muncie Close Ratio Rock Crusher 4 Speed Transmission. It is actually a Rock Crusher from a 1968 Camaro. This has the course spline input with no lines or grooves, …
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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.
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Beginning in 1967, transmissions had a date designator added to the serial numbers. For prior years only a month and date were added. 1968, 1969 and 1970 . The 1968 model was identical to the 1967 model except for a main case casting alloy change. The most common main case casting used during this period was 3925660.
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Recent Comments. Michael Coons on NEW Auto Gear Upgraded Ultra Case Muncie HD M22 4-Speed Rock-Crusher Street/Strip. Camaro, Corvette, Chevelle, Nova. December Xmas Sale!!! Brett Henson on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. Perfect Performance with 2.73 to 3.42 Rear End Gears.
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The Muncie four-speed was produced in two ratios: the wide ratio (M20) …
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The main case date code is usually found on the passenger side of the case just below the casting number. 2. The extension housing date code can usually be found on the passenger-side of the case ...
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298 posts · Joined 2021. #1 · Mar 28, 2022. Hi Nova people, I have done some searching, but am interested in live, timely advice. My '71 was originally a 250 powerglide car that was swapped for a 350/TH350 before I bought it four years ago. I'm definitely in the camp that hot rods/muscle cars/sports cars/anything fun should have a manual ...
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I'd also suggest avoiding synthetics and stick with a quality 75w-90 (or 80w-90) dino gear lube. Make sure it is GL-4 not GL-5. I'm not even sure an 85w-140 oil is even available in GL-4. Team Chevelle #998. 1965 Malibu SS L79. 2006 GTO, 2004 GTO. 1969 C10 Shortbox Fleetside.
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It is easy to determine an early Muncie four-speed transmission side cover from the later models by the way the transmission shifter arms are attached. The 1964 through 1968 Muncie side covers had ...
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