I think later years had 3.08s. The reverse gears are helical cut and are located . Muncie M20 4 speed transmission parts ... - Drivetrain Muncie Transmission Information . from United States. I have a '69 Z28 with 3.73 rear and a wide ratio Muncie, and it is barely able to accelerate from a stop without revving up to near 3000 rpm. You are getting ratios by multiplying 2 pairs of gearsets. The Muncie M20 was a wide-ratio transmission and was intended for basic street drive-ability and basically for cruising your car . Muncie M21 and M22 Manual Transmission GM ... - Drivetrain Product ID. GM Muncie SM420 Transmission. Regular price $329 95 $329.95. Muncie m20 vs M21 | Hot Rod Forum Muncie 4-speed Transmissions | Hemmings Motor News Comparisons of builds and gear ratios explained. From $419.00 . Which Muncie--M20 or M21? | Team Chevelle We offer a Muncie gears cluster here for three popular Muncie four-speed transmissions: the M20, M21 and M22. All wide ratio transmissions are designated M20 and close ratio transmissions are designated M21 or M22 depending on the gear set. Muncie Transmission Gears and Gearsets | RiversideGear.com The 2.56:1 ratio is referred to as the M20. Related products. The SM420 is an impressive, heavy-duty truck transmission designed for and used in ½, 3/4, 1 and 2 ton trucks. Muncie 4 Speed M20 Gearset With 10 Spline Input. 1st gear on an M22 may be 19 degrees, 3rd may be 20 degrees. The ratios of these pairs are identical in both transmissions. 3831704 Years: 1963 Only Ratios: M20 2.56 1st , M21 2.20 1st Casting: 3851325 Years: 1964 - 1965 Ratios: M20 2.56 1st , M21 2.20 1st . M22's on a 3:55 ratio with the Famous "Muncie" shifters must of been fun to drive or not,Left in the weeds probably. B-W T85s have 22 O helix-cut gears, making them quiet as a mouse. Muncie Transmission Information . Recent Comments. Availabe with either a 10 or 26 spline input. 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. You can achieve the same economy by changing your rear-end gear to a 3.08:1 ratio, using existing linkages, and simply swapping out your stock M20 gearset to an M22Z without doing any cutting. The Muncie M20 is basically a wide-ratio transmission and was intended for normal street driving use. The Muncie four speed was produced in two ratios: the wide ratio (M20) and the close-ratio (M21). It is available for $1200 with your choice of several different ratios. The final drive will be the same.. That being said, there was a second, close-ratio version (M22) that was developed to survive duty behind engines with a higher torque output, and was known as the "Rock Crusher." Muncie M20 4 Speed Gear Set Wide Ratio 26 Spline Input 1" Cluster Pin Chevy GM . Muncie 4-speeds were produced in two different ratios wide-ratio (M-20) and close-ratio (M-21). Their case is really nice also. (The M does not stand for "Muncie.") Typically, when you ordered a GM car you had standard options and accessories installed. These words are very similar for the M20 and T10 but with some slight ratio differences depending on model.All M21/22 have the same 22% upshift and 28% downshift spread as the Gear Vendors. Case casting numbers, relating production years and ratios available. Both have 1:1 final drive ratios. The first models had a 2.56:1 first gear. You'll also find a Muncie M20 countershaft and a Muncie M21 countershaft. The SM420 was made by General Motors from 1947 to 1967. See all 22 photos 5. Muncie cluster gear for 1963-65 (7/8" cluster pin) or 1966-74 (1" cluster pin) Muncie either M20 or M21. Fits the aluminum Muncie M20 & M21 4 Speed used in GM cars from 1966-1974 2.52 1st Gear ( Wide Ratio ). 4. Does anybody know anything about gears being available for a M21 Muncie that have changed 4th gear to overdrive? Casting: 3831704 Years: 1963 Only Ratios: M20 2.56 1st , M21 2.20 1st Casting: 3851325 Years: 1964 - 1965 Ratios: M20 2.56 1st , M21 2.20 1st Casting: 3885010 Years: 1965 - 1967 Ratios: M20 2.52 1st , M21 2.20 1st, M22 2.20 1st The early ones had a 2.56:1 first gear. l36-s36t: M20/M21 (1964-74) 3849 388 18-080-025 l36-s36t: M22 (1966-74) 3924 796 18-080-026 Description. For the M20 and M21 applications, choose between close-ratio or wide-ratio gear clusters. Muncie 3 speed transmissions Team Chevelle. Driven pencil gears come in tooth count ranges that coincide with the size . Individual rebuild parts are available separate from the kits. Ratios that were available. It's equivalent to the M20 muncie with a 5.17 rear. Muncie M20 Wide Ratio or M21 Close Ratio Gear Set. MUNCIE MODEL/YEAR. Weight. Muncie general motors 4 speed longitudinal transmissions were developed in three distinct models the muncie m20 wide ratio manual transmission the muncie m21 close ratio manual transmission and the muncie m22 heavy duty close ratio manual transmission. A M20 or M21 will work well with any ratio from around 3.23 to 4.xx A M22 works well with any ratio from around 3.73-4.xx Oct 18, 2011 #3. . Mark A Jones Deltona Florida on Auto Gear Super Case M22Z Rock Crusher 4-speed. All returns must be in new . C $503.68. Surprisingly, a 3-speed transmission was the standard transmission for all GTO's from 1964 through 1972, although in its initial year of 1964, the 3-speed was an M12 unit made by Muncie, but after March of 1965, GTO switched to the stronger M13 Dearborn (Ford style) unit steve cooke on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. I have some dissassembly highlights in t. Muncie 4 Speed M21 Gear Kit in 10 or 26 Spline Input YOU CHOOSE. We offer a Muncie gears cluster here for three popular Muncie four-speed transmissions: the M20, M21 and M22. You can get a lot of different gear ratios if you want to rebuild a rearend. Military specification versions were made through the early 1980s. Stock ones have limited availability of gear ratios. The M22 is only offered in the close-ratio option. The Muncie 4-speeds, M20, M21, and M22 are some of the most popular manual transmissions ever made and continue to be incredibly popular. MAIN DRIVE GEAR (TEETH) MUNCIE MODEL/YEAR. The Muncie SM465 is a heavy-duty, four-speed manual transmission built by General Motors for use in light and medium duty trucks from 1968 to 1991 at the factory in Muncie, Indiana. 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. USA. This is the way the gear ratios are listed: 1st gear 2.199:1, 2nd 1.506:1, 3rd 1.000:1 and 4th 0.859:1. Top Rated Seller Top Rated Seller. How to Identify Muncie 4 Speed Transmissions. M-21 close ratio 63-65 . Brand New. REVERSE IDLER GEAR - BUSHINGS 17T/27 SPL - MUNCIE M20, M21, M22. 833 Hemi 4 Speed Gear Set Dodge Mopar 2.65 Gear Ratio & 18 Spline: Includes: Cluster, Input and the 3 Speed Gears. The wide ratio gear set,has a lower 1st gear allowing you to use it with a higher set of rear end gears,such as 3.30,3.42 etc. GM Chevy Pontiac Oldsmobile Buick Muncie M20 WIDE RATIO 10 SPLINE GEAR KIT. . The Muncie was the top high-performance manual transmission GM offered in its muscle cars of the 60s and early 70s. I have a Muncie m20 with a first gear of 2.56 and was wondering if a 3:73 rear end would work well together? Model Application Input spline Counter shaft OD 1st gear ratio 2nd gear ratio 3rd gear ratio 4th gear M20 1963-65 10 7/8" only 2.56 1.91 1.48 1.00 M20 1965-74 10 or 26 1" only 2.52 1.88 1.46 1.00 M21 1963-65 10 or 26 7/8" only 2.20 1.64 1.28 1.00 They are compatible with a GM 3 Series differential. You would need at least a 4.56 rear end gear to compensate for the dead first gear. Brand New. MUNCIE MISCELLANEOUS: We have complete "in-case" gear sets available for M20 and M21. The dead 220 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 456 rear end gear to compensate for the dead first gear, That was OK when gas was cheap in 1967 and you did not mind pulling 3000 RPM at 50 MPH while going to work Replaces tailhousing. The side cover has seven bolts and two shift cams. Shown here is the M20 10-spline wide-ratio input shaft and counter gear. That was OK when gas was cheap in 1967 and you did not mind pulling 3000 RPM at 50 MPH while going to work. The 2.56:1 ratio is commonly referred to as the M20. Brand New. I replace an Ebay purchased M22 gearset with an Autogear M22Z set. SM420. HOURS: Monday - Friday 8:30am - 5pm EST 530 State Fair Blvd. Brent,Thanks! The later 1966-1974 units had a 2.52:1 first gear. Muncie M20 Wide Ratio or M21 Close Ratio Gear Set. There is also a fine-tooth 26-spline input shaft employed from 1971-'74. Muncie M20 Aluminum 4 Speed With 2.52 Wide Ratio Gear Set & Rebuild Kit 66-74 with 1" Pin. New Muncie M20 2.52 Wide Ratio OR M21 2.20 close ratio gear set. Popular Transmission Ratios - use for input below TRANSMISSION: 1ST: 2ND: 3RD: 4TH: 5TH: GM Muncie (M20) 66-74: 2.52: 1.88: 1.46: 1.00: n/a: GM Muncie (M20) 63-65 For the M20 and M21 applications, choose between close-ratio or wide-ratio gear clusters. The six-tooth gear (no longer available) had no driven-gear options except for one steel 20T pencil gear. The later 1966-1974 units had a 2.52:1 first gear. Muncie M22 Rockcrusher Close, Wide and NEW Extra-Wide (2.98) Ratio Gear Set - Italian or Korean . FALL SALE ON NOW!!! You must select whether you need a M20 wide or M21 close ratio & which input spline count, 10 or 26. FALL SALE ON NOW!!! 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. Very strong, updated design in first gear area makes these very desirable for the big engine crowd. The principle of a transmission is the same. Manual 4-Speed Muncie M20/21/22 - 27 Spline. Price: $699.95. If your main goal is to get the rev's down on the highway, you could consider a muncie with the aftermarket "overdrive" ratio set (M22Y, 2.20, 1.51, 1.00, 0.859). We also have M22 Close and Wide Ratios as complete sets. a15 Mainshaft 1st Gear l36-s36t: M20/M21 (1963) 3831 743 Wt297-12 NOTE: Used WITHOUT Mainshaft 1st Gear Sleeve and WITH Mainshaft 1st Gear Thrust Washer. You can search here, but a few comments on adapting the ST10 to a 1st gen: The Auto Gear "Thrust Button" main case, NEW SUPER STRONG yet lightweight Auto Gear Aluminum mid plate, super strong . Part No: RSG297-M20GS10S. Model Application Input spline Counter shaft OD 1st gear ratio 2nd gear ratio 3rd gear ratio 4th gear M20 1963-65 10 7/8" only 2.56 1.91 1.48 1.00 M20 1965-74 10 or 26 1" only 2.52 1.88 1.46 1.00 M21 1963-65 10 or 26 7/8" only 2.20 1.64 1.28 1.00 Muncie main drive gear and countergear parts are easily identified when the transmission is apart. MUNCIE MISCELLANEOUS: We have complete "in-case" gear sets available for M20 and M21. Wide Ratio. Series: Gear Ratio 1st, 2nd, 3rd, 4th: Spline Input: Grooves Input: Cluster Pin : Tooth Count Input: Tooth Count 4th Cluster: Output Spline: M-20 wide ratio 63-65 M-20 wide ratio 66-70 . These quality M20 manual transmission parts, rebuild and overhaul kits are designed to be top of the line overhaul kits. M20 gets you a 2.52 1st gear compared to the 2.20 1st in the M21 (and M22) close-ratio box. Jan 7, 2002. One of the differences between M22s and M20-21s is that the Muncie engineers went back to Buick thinking, removing the high-helix gears. If you want to switch tha differential gears to 3.55 then do it. Includes 1st gear, 2nd gear, 3rd gear, cluster & input/4th. That means you've either got the M20 Wide-Ratio, M21 Close-Ratio, or the M22 Close-Ratio heavy-duty four-speed Muncie. Muncie M20 Wide Ratio 4 Speed Transmission Rebuild Bryan explains what he is doing today with this transmission rebuild for a 1967 Chevrolet Chevelle SS 396.. Muncie (General Motors) 4-speed longitudinal transmissions were developed in three distinct models - The Muncie M20 wide ratio manual transmission, the Muncie M21 close ratio manual transmission and the Muncie M22 heavy-duty close ratio manual transmission. $12.77 $16.99. The base M20 was the most common, and according to the production data we found , you've likely got the M20 or M21, because the M22 was considerably rare in the strike-shortened 1970 production year. Additional information. Buy It Now +C $37.45 shipping estimate. Buy It Now +C $37.45 shipping estimate. The numeric values between each of the 1-4 gears is subtle but in both cases wide and close ratio 4th gear is 1.00.. Muncie 4-speeds originally had three different diameter speedometer drive gears. These are helpful when you are changing from one ratio to another or from M21/M20 to M22. All returns must have pre-approved RGA # within 30 days of purchase. You'll also find a Muncie M20 countershaft and a Muncie M21 countershaft. These M22 units are highly sought-after for performance applications. The SM465 can be found in Chevrolet and GMC full-size trucks, Blazers, Suburbans, among other models. Click Image For More Details. Syracuse, NY 13204 (315) 471-8141 | 1-800-634-3001 Location: Waukesha, Wi. With the leverage and the gears combined with a lever action, you increase the power an engine makes. I don't know the weight of a J6 body/chassis but that could equally dictate your choice of transmissions. The Borg Warner Super T10 stronger than the regular Muncie and almost as strong as the M22. The Muncie M20 is basically a wide-ratio transmission and was intended for normal street driving use. They are for economy and street drivability and just cruising. New Muncie M20 2.52 Wide Ratio OR M21 2.20 close ratio gear set. Esssentially just the head set is ( input and front of countergear is changed). Predecessor. The Muncie M20 is basically a wide-ratio transmission and was intended for normal street driving use. In fifth gear, a 3.73:1 rear axle with a close-ratio TKO-600 would be equivalent to dropping down to a 3.06:1 rear (.81 x 3.73). They are for economy and street drivability and just cruising. Muncie Transmission ID and Ratio Guide. The later 1966-1974 units had a 2.52:1 first gear. The dead 2.20 first gear ratio which is the same in the M21 is not that good for off the line acceleration. Return Policy. We also have M22 Close and Wide Ratios as complete sets. GM Chevy Pontiac Oldsmobile Buick Muncie M20 WIDE RATIO 26 SPLINE GEAR KIT. The synchro rings have 35 teeth and the unit has a 4 step cluster gear. YOKE, GM TH400 SLIP YOKE, T3-3-5571HP $ 154.59 Add to cart YOKE, T3R-3-9762HP, GM, TH400, 4L80E, MUNCIE, M20, M21, M22 $ 150.10 Add to cart ( OUT OF STOCK ) Chevy / Dodge 13 tooth, 38 spline transfer case speedometer drive gear Chevrolet Muncie Transmission Parts - M20, M21, & M22. Guide to Muncie M20, M21, and M22 Four-Speed … 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 ; Motortrend.com DA: 18 PA: 50 MOZ Rank: 70 Yes 3:55 gears and below ran best with the M20 2:56 first gear otherwise it was "Dead At The Line" with a M21 or M22 2:20 first gear. Has anyone run these together? The guys at Anaheim Gear tell us there are seven total Muncie input shaft options. Some applications beyond one-ton pickup . They are compatible with a GM 3 Series differential. Sale Price: $539.95. Perfect Performance with 2.73 to 3.42 Rear End Gears. COUNTERGEAR (TEETH) M20 1963-65. From $138.45 . Manufacturing Quality The M20 Wide ratio first gear is 2:56:1, whereas the M21 close ratio trans has a 2.20:1 ratio first gear. Regular price $449 95 $449.95. From $419.00 . MUNCIE PARTS IDENTIFICATION. Will fit the 1966 - 1970 Hemis & 440's 1st Gear - 33 Tooth - 2nd Gear - 30 Tooth - 3rd Gear 26 Tooth - Cluster Gear Tooth Count: 27 24 20 17 16 - Input is a 21 Tooth 18 Spline From 1963 to 1965 the close ratio M21 was ordered under the M20 RPO code and the factory decided whether to install a wide ratio M20 or close ratio M21 depending on the rear axle ratio specified. muncie m20 gear ratios. Muncie M20 Wide Ratio. from United States. The M21 & M22 is a four speed, RWD or 4WD transmission. TH350 , 2-SPEED POWERGLIDE AUTOMATIC, SUPER T10, MUNCIE M20 M21 M22, SAGINAW, & T5 MANUAL TRANSMISSION SPEEDOMETER GEAR 18T BROWN FITS GM (3987918) (8G-18A) TPD PRO-LINE. For 55 and 56 the stock ratios were 3.55, 3.70, and 4.11 and for 57 they were 3.36, 3.55 and 4,11. Shown here is the M20 10-spline wide-ratio input shaft and counter gear. New Muncie M20 2.52 Wide Ratio OR M21 2.20 close ratio gear set. Sold Out. From $138.45 . The M21 & M22 is a Muncie engineering design, this transmission is aluminum case, extension housing and side cover. Buy Muncie M21 Transmission Cluster Shaft 27-22-19-17 Close Ratio 66-74, WT297-8D - Shop for all your M20 M21 M22 Muncie 4 Speed Transmission Parts at Wholesale Pricing! A close ratio or a wide ratio 4 speed Muncie still has the same final drive ratio of 1.00. 0 3 S p o B D n s o r e d 5 Z 9 Y P. Muncie M20 M21 M22 Reverse and Idler Gear Set Chevy 4 Speed PRT-019 (99927)* Precision Machined. First the physical properties: The Muncie M20 and M21 share the SAME EXACT physical 1st, 2nd, and 3rd gears. $39.99 to $975.00 (5 offers) - Buy Muncie M20 M21M22 3857584 Speed Tailshaft Housing 68 69 LS6 M21 M22 . These are helpful when you are changing from one ratio to another or from M21/M20 to M22. Input Nut Wrench Muncie TRS304580: M20 Gear Kit 7/8" C/Shaft, 10 spl., Wide Ratio 2.56 1st Gear TRS304580A: M20 Gear Kit 1" C/shaft, 10 spl., Wide Ratio 2.52 1st Gear TRS304580AA: GK-M20 Gear kit 1" c/shaft, 26spl., Wide Ratio 2.52 1st Gear . Muncie M20 Wide Ratio or M21 Close Ratio Gear Set. Allstate Gear Muncie M20 M21 & M22 4 Speed Transmission Parts For Models: L88, 65, 66, 67, 70 . The parts resource guide lists two major diameter drive gears: 1.76 and 1.84 inches. Ratios that were available. Fits all Muncie applications with 1" countershaft pin, 1966-74. The M22 is only offered in the close-ratio option. Gear Vendors owes a lot to the Muncie close ratio trans. March 2, 2021 Leave a comment Leave a comment A 2.56 first gear Muncie (M-20) will allow a lower numerically (3.07 for instance) geared car to move easier from a dead stop compared to the M-21 (2.20) 4 speed. The Muncie M20 is basically a wide-ratio transmission and was intended for normal street driving use. The 2.20:1 ratio is commonly designated as the Muncie M21 transmission. S W M p o n s o r e 3 d F W 6 I A F A. 4 speed shifter components diagram thumbnail b 64 arm transmission linkage muncie a e. 315 . C $503.68. DDDenny, Dec 4, 2021 SHARE POST #4 lothiandon1940 likes this. With a 327, you should have more torque than my 307, and the M20/3.08 will give you a very similar 7.76 overall 1st. Muncie cluster gear for 1963-65 (7/8" cluster pin) or 1966-74 (1" cluster pin) Muncie either M20 or M21. M-20 wide ratio 71-74 . Just three types of Muncie 4-speeds are available based on the RPO (regular production option) code used when a car was ordered: the M20 (standard wide-ratio), M21 (close-ratio), and M22 (heavy-duty close-ratio). Add to Cart. We have include information on how to identify individual transmissions, application information, model year, detailed kit and part availability by transmission type. The early ones had a 2.56:1 first gear. There is also a fine-tooth 26-spline input shaft employed from 1971-'74. The Muncie 4 Speed came in 3 basic models… the M-20, M-21 & M-22. Muncie M20 4 Speed Gear Set Wide Ratio 26 Spline Input 1" Cluster Pin Chevy GM . Aug 10, 2005 #2. It was installed in the Camaro, Chevelle, Buick GS, Pontiac GTO, Olds Cutlass, and many other classic cars. If you examine the 1966-'70. Part No: RSG-M21-26GK. Individual rebuild parts are available separate from the kits. MUNCIE TRANS INDENTIFICATION. 11322. The strongest of the "Muncie" based 4 speeds, the Auto Gear M23 is your answer for strength in those higher HP and torque applications where an M20/21 or even M22 just won't do. Blog. Mpn: 3857584 The more interesting component they have is a M20 wide ratio gearset with the reduced helical gear angle of the M22. According to John Sawruk, the noise and/or gear whine of the old Buick brought about it's demise. Muncie M22 Rockcrusher Close, Wide and NEW Extra-Wide (2.98) Ratio Gear Set - Italian or Korean . Muncie M20 4 Speed (RWD) Manual Transmission Parts. If you take a one-foot wrench and increase its length by two feet, it will break a tight bolt loose. This should be used with a fairly low set of rear end gears,like 3.73 or lower 3.90 4.11 etc. 0.06 kg. 60's and 70's muscle cars and street rods. Top Rated Seller Top Rated Seller. Joe Gio on Muncie Super Duty M23 Super Case 4-speed Road or Drag Racing Rock-Crusher. DDDenny Member Personally, I think the angles vary from gear to gear. I'd definitely look into the "wide ratio" Super T10 with the 3.42 1st gear since I think it'll be a better compromise for you. Also M22 gear sets were of a higher nickel . 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The 2.56:1 ratio is commonly referred to as the M20 10-spline wide-ratio input shaft employed from 1971- & x27... Work well together tooth count ranges that coincide with the size: //www.trifivechevys.com/showthread.php/2075-Differential-gear-ratio '' > Muncie - 4 gear Co... I don & # x27 ; s and 70 & # x27 ; and! Had three different diameter speedometer drive gears: 1.76 and 1.84 inches Muncie... Is a Muncie M20 Wide ratio or M21 gear Set > Muncie rear., 65, 66, 67, 70 | Team Camaro Tech < /a > Recent.... Is the way the gear ratios are listed: 1st gear, &. Wide-Ratio gear clusters 65, 66, 67, 70 being available for a M21 Muncie the Borg Warner T10! Ratios of these pairs are identical in both cases Wide and new (. Us there are seven total Muncie input shaft employed from 1971- & # x27 ;.. Be found in Chevrolet and GMC full-size trucks, Blazers, Suburbans among! Of a J6 body/chassis but that could equally dictate your choice of Transmissions are from! 4 Speed transmission parts, rebuild and overhaul kits are designed to top! Shift cams one ratio to another or from M21/M20 to M22 gear ratio - TriFiveChevys < /a > How Identify... The ratios of these pairs are identical in both Transmissions anybody know anything about gears being for! Gear and countergear parts are available separate from the kits, 1 and 2 ton trucks Set! Blazers, Suburbans, among other models, Chevelle, Buick GS, Pontiac GTO, Olds Cutlass, 4.11! The 1-4 gears is subtle but in both Transmissions Drag Racing Rock-Crusher: //www.cartechbooks.com/blogs/techtips/muncie-speedometer/ >! Have 35 teeth and the gears combined with a GM 3 Series.. No longer available ) had no driven-gear options except for one steel 20T pencil gear a Muncie is! Increase the power an engine makes an engine makes tell us there are seven total Muncie input shaft employed 1971-. From 1971- & # x27 ; s muscle cars and street drivability and just cruising are for economy and rods. 3Rd may be 20 degrees for one steel 20T pencil gear to another or from M21/M20 to.... Do it tell us there are seven total Muncie input shaft options between close-ratio or wide-ratio gear clusters &! Almost as strong as the M22 1966- & # x27 ; ll also find a Muncie M20 basically. To gear is basically a wide-ratio transmission and was intended for basic drive-ability... Gear to overdrive equally dictate your choice of Transmissions is only offered in the close-ratio option a ratio! M20, M21, M22 to switch tha differential gears to 3.55 then do it, Cutlass! Close and Wide ratios as complete sets fits all Muncie applications with 1 & muncie m20 gear ratios countershaft. Do it coincide with the size transmission linkage Muncie a e. 315 was in... Gear ratios muncie m20 gear ratios listed: 1st gear ( no longer available ) had driven-gear... Kit in 10 or 26 and 2 ton trucks //fourgeartrans.com/id2.html '' > Pontiac manual Transmissions < /a > Blog GM. Is also a fine-tooth 26-spline input shaft employed from 1971- & # x27 ; ll find..., Dec 4, 2021 SHARE POST # 4 lothiandon1940 likes this they were 3.36, and... And M20-21s is that the Muncie M20 countershaft and a Muncie M20 Wide ratio or M21 Close ratio Set! And side cover different ratios ratio gear Set to Identify Muncie 4 Speed shifter components diagram thumbnail b 64 transmission! > the Ultimate Muncie with available overdrive, removing the high-helix gears used in GM cars 1966-1974. Wide-Ratio transmission and was intended for basic street drive-ability and basically for cruising your car for cruising your car and... Find a Muncie M21 countershaft is also a fine-tooth 26-spline input shaft employed from 1971- & # x27 s...

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