Muncie 4 speed rock crusher C355 Forged Aluminum mid plate. Complete overhaul kit for Muncie 4 speed transmissions. Super Tail. This is the M22 17 degree gear set of the famed "Rock crusher" in original "close" ratio, which are as follows, 1st gear 2. This one will have the studs coming out from the side where your shifter linkage mounts, like pictured. Fodrea. 56:1 first gear) and the M21 close-ratio (2. Jan 25, 2022 · GM’s goal with the Muncie four-speed was to produce a better shift employing larger synchro cones. The Muncie design has roots going back to 1935. Aug 3, 2018 · A close look at the Chevrolet Muncie M20, M21, and M22 four-speed transmissions. 20:1 first gear). Jun 9, 2021 · 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. It is […] Muncie 4-speed Transmissions | Hemmings Motor News 4/29/13 4:45 PM "rock crusher," which was used behind performance big-block engines and in some Corvettes THIS IS OUR Complete M22 gear train for the Muncie 4 Speed available in 26 or 10 clutch spline input. C355 Forged Aluminum Mid-Plate. The Muncie 4 Speed came in 3 basic models… the M-20, M-21 & M-22. Proper identification of the transmission type is absolutely necessary, but sometimes difficult due to several factors. This kit will replace original M20 / M21 or M22 sets. . Close Ratio or Wide Ratio Gears. Nov 4, 2022 · The Muncie M22 is known as the Rock Crusher. Just got done converting my 1979 C3 corvette with a TH 350 auto transmission to a custom Muncie M22W Auto Gear rock crusher manual 4 speed built by Craig Wri MUNCIE 4-SPEED MANUAL TRANSMISSION ASSEMBLIES, GEARS & PARTS APPLICATIONS: GENERAL MOTORS L26-s36T: M22 ‘Rock Crusher’ (1963-70) 3925691 WT297-16U NOTE: these Mar 17, 2021 · The M21 & M22 is a four speed, RWD or 4WD transmission. This is by far the "BEST" replacement aluminum case ever built for a Muncie! 1967 - 1968 Muncie 4 Speed Transmission, M-22 Rockcrusher Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. This one will have the holes on the side where a bolt will secure your shifter linkage levers. To understand the evolution of the Muncie 4-speed you have to look at a series of engineering platforms that led to the final design of this transmission. 1- Set of French Locks. This a BRAND NEW SUPERCASE M22 4-Speed Rockcrusher Style Transmission. The side cover has seven bolts and two shift cams. 31 12 bolt posi 71 camaro. I took the time to research the patent number that is cast into most Muncie main cases. AG Roller Side Cover. 30% Fee on Cancellation of order after New Super Heavy Duty Direct Replacement Heavy Duty M20 or M21 With Muncie Auto Gear Upgraded Ultra Case. Oct 28, 2004 · The famous "rockcrusher" M22 4 speed had the same gear ratios as the M21 but with a heavy duty gearset. patent number 3,088,336 along with an engineer named James W. 1-Counter Shaft NEW DESIGN MUNCIE M22 ROCK CRUSHER CLOSE RATIO 4 SPEED. 73 Sep 23, 2018 · The 2. 20:1 ratio first gear is usually referred to as the Muncie M21 transmission; based on GM’s production codes. The 2. Sep 15, 2010 · 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. THIS IS THE M-22 TRANSMISSION THAT GM COULD NOT BUILD! Newly designed STATE-OF-THE-ART Muncie front case from "Auto Gear". Aug 7, 2018 · The Muncie four-speed transmission has its roots back to 1935 and the U. Must specify if your transmission has a 1" or 7/8" cluster shaft (pin) 7/8" kit comes with NON stepped synchronizer rings Combined with high impact alloy gears this 4 speed really pushed the limits of it's aluminum case in drag race applications. The Gear Box Transmissions Muncie-Tremec-Saginaw-TKO-Top Loader-Richmond Forged Brass blocker rings. The M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. 20 to 1, 2nd gear 1. M cars. Correct fit for all 1969 - 1973 model Chevelles and Novas. This is the Muncie M-22 Rockcrusher four speed. 34 tooth 1st super strong 1st gear (stronger that the M22 1st gear). No Price Muncie Overhaul Kit. These 4 speeds sound like a blower drive. Identify a transmission type correctly before fitting it into your car. S. Although the gears are not spur gears ( completely straight ) they still produced a fair amount of gear noise thus the "Rockcrusher" name. Their earlier transmission, the Borg Warner T-10 4 speed, just could not meet the new needs because it was limited to the amount of power it could withstand. You can identify several unique signs that identify an Sep 23, 2018 · 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. Correct fit for all 1967 - 1968 model Camaros. 64 to 1, 3rd gear 1. A great Super… Joe Gio on Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. Cam Benty Writer John McGann Photographer Nov 04, 2022 NEW Upgraded Muncie M20 4 speed $2498. How to identify your Muncie 4 speed Apr 24, 2022 · 70 chevelle, SS clone 454 4 speed 3. 00. STRONGEST Direct Replacement M22 With NEW Muncie AUTO GEAR ULTRA CASE With The Strongest M22z ULTRAWIDE RATIO 4 SPEED TRANSMISSION. Lead time 4-6 weeks. Muncie 4 Speed Transmission M20, M21 & M22 with 1" counter shaft bore. ” By comparing these M22 transmission assemblies to Chevrolet’s 1965 transmission identification codes, I found a perfect match. 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 available as early as 1965 in Corvettes. 2-Key & Spring Kits. Wide, Close, or Rock Crusher Initially there were two specific Muncie transmissions available: the M20 wide-ratio (2. The M23 is the strongest Muncie style 4-speed available. If you have the incorrect transmission, your car may not function properly. The M22 Rock Crusher 26-spline input shaft The Gear Box is the source for Muncie Parts like the new assembled M22 SUPER ROCK CRUSHER 4 speed kit with micro super finish or downshift case support. You receive what you see, input, cluster, 1st 2nd, 3rd, reverse drive idler. He tells us both the M20 wide-ratio and M21 close-ratio transmissions were first offered in 1963. It is the heavy-duty version of the 2. High Performance Forged Synchronizer Rings made by Synchroking! 1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings. SALE EXTENDED!!! steve cooke on Muncie Super Duty M23 Upgraded Ultra Case 4-speed Road or Drag Racing Rock-Crusher. Perfect Performance with 2. (owned since 1978!) 454-th400 3. No Price NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899. Lightened main shaft for less rotating mass. See how we improve its strength and versatility by adding a Gear Vendors Overdrive. 20:1 ratio M21 four-speed. This a BRAND NEW SUPERCASE M22 4-Speed Muncie Rockcrusher Style Transmission. Ironically, the Muncie was designed based of of the T-10 using its same basic layout. A close look at the Chevrolet Muncie M20, M21, and M22 four-speed transmissions. Main drive oil seal input shaft and bearing retainer. AG Roller… 1969 - 1973 Muncie Four Speed Transmission M-22 Rockcrusher Complete original GM Muncie transmission rebuilt and guaranteed for 1 year. 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. 07 12 bolt come guys, every gearhead knows every muncie is a rock 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. 20 1st gear, remanufactured with attention to detail and professional assembly, the case was cleaned and blueprinted to OEM specifications, 1” counter bore with proper leak free interference fit, new gears, synchronizers, bearing retainer, major overhaul kit, 10 spline input and 27 spline output, new new vehicles. THE MAIN CASE IS THE STRONGEST MADE with fill and drain plugs. Muncie 4 Speed Transmission Master Rebuild Kit Master Rebuild Kit. An M-22 "Rock Crusher" is a Muncie four-speed transmission for cars made by General Motors in the 1960s. The synchro rings have 35 teeth and the unit has a 4 step cluster gear. SALE EXTENDED!!! Mark A Jones Deltona Florida on Auto Gear Upgraded Ultra Case M22Z Rock Crusher 4-speed. 56:1 ratio is referred to as the M20. The M22 Rock Crusher would come later to accommodate the heavy twist of Chevrolet’s big-blocks in the mid-1960s. 10 OR 26 spline input and large 27 OR 32 spline output shaft. They have the same gear ratios as the legendary M21 but with a heavy duty gearset. This is a BEEFY version of the original Rock Crusher transmission. The M22 Rock Crusher would Aug 7, 2018 · GM’s goal with the Muncie four-speed was to produce a better shift employing larger synchro cones. A GREAT HEAVY DUTY ROCKCRUSHER FOR YOUR CAMARO, NOVA, CHEVELLE, CORVETTE, GTO,442. These M22 Jan 23, 2025 · Muncie M22 4 Speed Transmission, rock crusher heavy duty with all new gears, close ratio 2. Each new Auto Gear transmission is built from genuine Auto Gear parts, the highest quality available. elkuugy exle wgkawo qezwm oyt swsjla zicy gdrp epmzsf psj vuuu csf vpkgf ngez szxot