Although some claim that the M23 is a 'rock crusher', it is indicated that this box was assembled in both wide and close ratio components and also with straight cut gears common to the rock crusher (M22) transmission. Looks …
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M22 Identification. ... If it's the original trans, should match the VIN of your car. P = Muncie Pass Car 0 = 1970 C = March 13 = day of month C = M-22 . ... Doe this mean it's still …
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M22 transmissions can only be identified removing the selector cover(side cover) and visually identifying the straight cut gears-all other muncie transmissions had conical cut(angle) gears. The most well known Muncie …
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An M20 transmission was the standard trans you had to option for M21 or M22 . So the rear axle ratio would be one of the following 3:36 3:55 or 3:70 for an 1971 LT-1. ... Rock Crusher M22 Calendar months produced are …
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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 …
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Look in the post at the top on the trans fourm. It tells how to pick out what is what but the main thing to look for in a M-22 is the gear angle. Take off the side cover and look at the angle of the gears. M-20, m-21 will have 45 …
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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 ...
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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 …
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Do you know how to tell the difference between a Saginaw, a T10, and a Muncie four-speed? The easiest way is by knowing the construction of each unit, and the differences …
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Re: How to Identify a Muncie 4 speed 12-24-02 04:14 AM - Post# 146391 In response to 57Townsman210 There is a very complete web page about identifying the various …
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Identifying Muncie 4- Speeds. Several things are needed to identify a Muncie correctly. The first is a main case casting number. Second a count of the input shaft and output shaft splines and if …
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How to Identify a Muncie Four Speed: Build Date Codes, VINs ... Last time we talked about how to distinguish a Muncie four-speed transmission from a Saginaw or BorgWarner and the …
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M22 transmissions can only be identified removing the selector cover(side cover) and visually identifying the straight cut gears-all other muncie transmissions had conical …
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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, …
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Further Muncie identification 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". …
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the old "Rock Crusher" was a "close ratio trans, the same as the M21... the new "wide" in a widfe ratio, similar to the M20 (ratio-wise)... Both version will have similar RPM …
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I currently have an M22 Rock crusher in my '56 Chevy pickup, and have another M22 that was rebuilt about 6 years ago by my father but never used. ... like "P0139A" The last …
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How to Identify Muncie 4 Speed Transmissions. Identifying Muncie 4 Speeds III by Paul Cangialosi : The most popular question has to be that everyone thinks they have the famous "rockcrusher" M22 4 speed. This had the same gear …
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Learn how to identify production code numbers, VIN numbers, and more on a Muncie transmission. Get in the right gear with these tips. ... also known as the "Rock Crusher." ...
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GTO 3-Speed Transmission, 1972 GTO, Heavy Duty 3-speed transmission, Dearborn, Muncie, M13, M12, Muncie M20, M22 rock crusher, Auto Round-Up MagazineA: …
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Mucncie 4 Speed Identification Page ... In addition, many GM high-performance engines came with M-22 "Rock-Crusher" in the 1970-73 years, however an early version of the M-22 was …
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L30-s36T: M22 'Rock Crusher' 3879999 WT297-21A A17 Mainshaft 3rd Gear L27-s36T: except M22 3831747 WT297-11 L27-s36T: M22 'Rock Crusher' 3880845 WT297-11A A18 Mainshaft …
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Many people are always calling me or asking me at shows on how to identify Muncie 4 speeds. Not too many people actually know what type Muncie they have and most publications have …
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4 Gear Trans Co. Muncie M22 "Rock Crusher 4 SPEEDS FROM 1965 TO 1974: This page is devoted to OEM Complete units; New aftermarket units and OEM parts and NOS parts. ...
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The Story of the Mighty & Majestic Muncie 4 Speed. 4 ·The M22 was eventually dubbed the Rock Crusher It is a common misconception that all Muncie transmissions are Rock Crushers but it …
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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 …
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i can tell you from experience that gm produced a m 21 tranny with a fine splined input shaft and a larger output shaft the size of a turbo 400 auto tranny. the one that i had …
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The easiest way to identify a Muncie transmission is by its side cover. Muncies have seven bolts, two bolts on the bottom, three on the top and one down each side. There are …
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The following charts can help with GM transmission identification for automatics and manuals. 1-844-78-Catalog. SHOP BY VEHICLE. Free Catalogs. 1967-02 Camaro; 1962-79 Nova; 1958-96 Impala ... This 1974 Trans …
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Identifying codes. 1963 -66 codes follow a 5 digit format starting with a P followed by the month and day the transmission was stamped. For example P0421 reads: Muncie four speed aluminum for passenger car April 21st. 1967 -74 Production …
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