Stamped serial numbers for all 1969 model year cases also included the year designator. 4 Speed Muncie. The Muncie was originally a stronger alternative to the T-10 and Super T-10 because it could take the torque. Remove the side cover and forks for a look at the geartrain. What you will find in your search for the right Muncie four-speed is conflicting information from different sources. Almost gone. have the same ratios in the 26 spline input and 32 spline output Check if this part fits your vehicle. You would think that in nectors. It has the GM casting number 3831704 on the case. ( all Transmissions are 100% new ), Standard . In more easy-to-understand terms, where driving at 65 mph in fourth gear yields an rpm reading of 3,318, you'll see 2,581 rpm and achieve much better fuel economy with the Gear Vendors overdrive engaged. The M22 has a higher first gear ratio than the M20, so it's ideal for drag racing. M22 or M22X I have a muncie 4 speed M22 for sale has new M22 gear set and rebuild kit new tork locking sliders i want 1950 dollars The shifter is still new with low mile shifts like new to 425. for the shifter call show contact info call or text ID# 3885010 year P7T27. However, GM made both 10- and 26-spline versions of the M20 and M21. Muncie also had a second close-ratio transmission called an M22, which enthusiasts christened Rockcrusher; this was used in performance big-block engines and Corvettes and is a highly sought-after performance transmission today, and is the heavy-duty version of the 2.20 ratio M21 4-speed. VIDEO: F22 Series PTO with Quiet . In the 1970s, virtually all Muncie four-speeds had 26-spline input shafts. The casting clock codes are at right above the fill plug. SPRING SALE!!! The specialty rebuilders that have seen hundreds, if not thousands, of these transmissions can be considered a reliable source. Few things excite like the sound and feel of an old-fashioned Chevrolet muscle car and that familiar whine of a classic Muncie four-speed transmission going through the gears. All three wereidentical except for the speedometer drive and the driven gears. Lead time 4-6 weeks. Reliable sources to validate information regarding serial and casting numbers will get scarcer as time passes. This is just a temporary positioning while we install the countershaft bolt, locking it to the midplate. 1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings, 2-Extension Housing Bushings 27 Spline and 32 Spline Main Shafts, Muncie Drive Speedometer Gear 8T 32 spline, 3978758, Muncie Drive Speedometer Gear 8T 1.18 ID, 1.84 OD, 3708144, Muncie Drive Speedometer Gear 8T 1.18 ID, 1.76 OD, 3708145, Muncie Front Bearing Upgrade Kit, 18-410-025, Muncie Front Retainer French Locks Kit, WT297-F, Muncie Input Shaft 21T 10 Spline Wide Ratio, AWT297-16B, Muncie Input Shaft 21T 26 Spline Wide Ratio, AWT297-16C, Muncie Input Shaft 24T 10 Spline Wide Ratio, AWT297-16A, Muncie Input Shaft 26T 10 Spline Close Ratio, AWT297-16, Muncie Input Shaft 26T 26 Spline Close Ratio, AWT297-16D. The early 3851325 PAT. Later cases seem to only have one clock. My guess is that theystarted with the sand castings becauseGeneral Motors didnt think this modelwould sell well as a 4-speed. Equipped with a GNS 430W, PMA 800B audio panel, JPI EDM 800 engine monitor, KAP 150 autopilot, Strike Finder .See More Details. Most of the time the other cloc is blank, but occasionally it represents numbers and deviations to the original blueprint. Few people today will everbe able to amass this number ofMuncie parts. GASSER MUNCIE SUPER DUTY ULTRA CASE M23 4-Speed. Muncie 4 speed. These cases have no serial numbers because they were never part of an assembly. The Muncie was originally a stronger alternative to the T-10 and Super T-10 because it could take the torque. $14.95. The 6207 bearings dimensions are 35-mm bore, 72-mm outside diameter, and 17-mm width. Part number SUM-731001 is a 32-spline slip yoke for the Spicer 1350 U-joint and measures 6.250-inches long. The Gear Vendors system requires all of these parts, including the yoke, wiring harness, speedometer cable controller harness, and shifter ball with activation button. C355 Forged Aluminum Mid-Plate. There is no front seal on the transmission, so the components are designed to fling transmission fluid away from the front of the case. And finally, if forced to choose between a Muncie or the BorgWarner T-10, it is suggested you choose the Muncie due to its brute strength. See the complete line of products that we offer atwww.midwesttrans.com. It uses much the same gear ratios as the close-ratio M-21, but it can handle much more abuse. Even if your Muncie is assembled from a mix of parts, you should be able to determine the ratio. The mainshaft assembly slides in from the back of the case around the cluster gear that has already been placed in the bottom of the case. Before you here are the basics of Muncie M20, M21, and M22 four-speed transmissions. This is a 3857584 housing, which means "Passenger-Side-Mounted Speedometer, 27 Spline.". READ MORE. Photography by the Author and Summit Racing Equipment, Muncie M20/M21/M22 Main Case Identification, Patent Pending, 7/8-inch Countershaft Bore, Patent Pending, 7/8-inch Countershaft Bore used mostly in 1964, Patent Number, 7/8-inch Countershaft Bore, Patent Number, 1.000-inch Countershaft Bore, Thin Fin Tailshaft, Driver-Side-Mounted Speedometer, 27 Spline Output, Thick Web Tailshaft, Driver-Side-Mounted Speedometer, 27 Spline Output, Pontiac Catalina Long Tailshaft, Side-Mounted-Speedometer, 27 Spline Output, Passenger-Side-Mounted Speedometer, 27 Spline Output, Passenger-Side-Mounted Speedometer, 32 Spline Output, Early Side Cover Used With 3857584 Tailshaft Housing, Late Side Cover - Long Boss - With A Transmission Controlled Spark Switch, Late Side Cover - Short Boss - With A Transmission Controlled Spark Switch, Late Side Cover - Long Boss - With A Neutral Safety Switch, Build facility (i.e., P = Muncie Transmission Plant), Month code it was assembled (i.e., 05 = May), Day code it was assembled (i.e., 25 = 25th Day), Month code it was assembled (i.e., D = April) (Beginning in 1967, Muncie used letter codes for the month code: A=Jan, B=Feb, C=Mar, D=Apr, E=May, H=June, K=July, M=Aug, P=Sep, R=Oct, S=Nov, T=Dec), Day code it was assembled (i.e., 12 = 12th Day), Month code it was assembled (i.e., M = August), Day code it was assembled (i.e., 03 = 3rd Day), Gear ratio set (i.e., A=M20) (This code was added to identify ratios. In the end, our 1969 El Camino lost some weight and reset the track record on our autocross course. I created a Facebook page at www.MuncieBook.com. Brand New. The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963-1974. Switches can have kept, as was the 7/8-inch counter-rounded- or spade-shaped male con-shaft bore. His BOOK on building and modifying manual transmissions is an Amazon best seller. Some of the best Muncie builders participate on that page. And keep in mind that not all will sport these grooves. 1969, only M22 transmissions had drain plugs. (verified owner) July 4, 2018. The ID groove system was good until several things changed. CURRENTLY UNAVAILABLE UNTIL SPRING-TAKING ORDERS, $2899.00 PLUS S/H + ASSEMBLY FEE of $225.00, $35.00 THRUST BUTTON FOR HEAVY LAUNCH AND DOWNSHIFT CASE SUPPORT, M22 (CLOSE RATIO OR WIDE RATIO AND ULTRA WIDE RATIO) (10 OR 26 SPLINE INPUT) (27 OR 32 SPLINE OUTPUT), NEW Muncie M22 SUPER ROCK CRUSHER 4 speed $2899.00. This is called a narrow 6307 bearing (PN N307LOE). This a BRAND NEW SUPERCASE M22 Muncie Rockcrusher Style Transmission. If you've ever looked at a BorgWarner T-10 and a Muncie four-speed and gotten them mixed up, you are not alone because the Muncie (M20, M21, and M22) is a direct descendant of the T-10 according to Cangialosi. From 1963-'70, the Muncie was fitted with a 27-spline mainshaft and must have the corresponding slip yoke. Its identical tothe 3831704, except it had a biggerfront bearing bore. If you have a 1963 Muncie that needs an input shaft bearing retainer, all is not lost if you can't find the 1963 aluminum bearing retainer. Chevy Muscle Car Tech Tips, Guides, Articles & How-To. (Photo Courtesy EricDavidson), Casting 3978764 is a later 32-splinemainshaft tail. The side cover has seven bolts and two shift cams. This 1990 Mooney M20M Bravo is a reliable and high-performance aircraft with TTAF 2716. Summit also offers a wide variety of slip and differential yokes for Muncie four-speeds. Confused? The T-10 four-speed was an evolution of the T-85 three-speed transmission, with both of these transmissions being quite similar in appearance. They are not interchangeable so you must have the correct one for [Click here to read more]. So how did the ratios change? Noticethat the serial number has been ground off (left). Related: Guide to Muncie M20, M21, and M22 Four-Speed Transmissions. Fair Price. The the wide stamp pad and the thick TCS switch covers were sometimes mounting ears. Midwest Transmission can Cryogenic Treat any shaft or gear. Entrance | Main Muncie | Store | Contact 11. 20. The 661 is considered the strongest factory GM case. Because 1964 and 1965 shared the same casting, sometimes it is hard to tell the production year of the case. Euroricambi and Auto Gear's own thrust-button SuperCase, , 'Oilite'-bushed shift cover, improved tailhousing and investment-cast. They are your life, [Click here to read more], If you have followed the procedures in the previous chapters, your Corvette body has been separated from its frame and mechanical components. Thematerial that shrouds the rear-bearingsnap ring is thinner than later models. The Muncie case (3831704) replaced the T10 4-speed in the 1963 Chevrolet Bel Air and Corvette by mid-May of that year. (The M does not stand for Muncie.). Notice that some extension housings overlap model years with other housings. Muncie T10 Super T10 4 speed and T5 Manual Transmission Parts and complete new transmissions. Remove the side cover and forks for a look at the geartrain. The m22 was gone in the Camaro in 72 as you state . The guys at Anaheim Gear tell us there are seven total Muncie input shaft options. Early pins were prone tofalling into the transmission. The Gear Vendors Overdrive unit features a 32-spline output and the ability to tune your speedometer to achieve accurate readouts. The 6207 bearing is the next smaller standard size that uses the same bore. Year Make Model Trim Engine Add vehicle Muncie M-22 Rock Crusher Four Speed Transmission - RARE Drivers Side Speedo Refurbished If the clutch doesnt fully engage, the transmission is still under load while shifting. Today, it is rare to find a Muncie that has never been apart or built from bits and pieces. Below we provide a M21 & M22parts illustrationto assist you with the correct identification of the parts you need. Phone: +1 855-230-5386. Using parts from Hooker, Aeromotive, Holley, Gearstar, Flex-A-Lite, and Chevrolet Performance, the swap only requires a few holes drilled and a bit of exhaust pipe fitted to make it happen. 7/8-Inch counter-rounded- or spade-shaped male con-shaft bore transmissions being quite similar in appearance all! To find a Muncie that has never been apart or built from bits and pieces, these. Muncie T10 Super T10 4 speed and T5 manual Transmission parts and complete new.... There are seven total Muncie input shaft options the T-85 three-speed Transmission with! Mounting ears Contact 11 ideal for drag racing just a temporary positioning while we install the countershaft,. At right above the fill plug new SUPERCASE M22 Muncie Rockcrusher Style Transmission Camaro in as... Uses the same gear ratios as the close-ratio muncie 4 speed m22, but it handle... `` Passenger-Side-Mounted speedometer, 27 spline. `` built from bits and pieces a mainshaft. Pad and the thick TCS switch covers were sometimes mounting ears built bits. Are the basics of Muncie M20, so it & # x27 s. Years with other housings counter-rounded- or spade-shaped male con-shaft bore pad and the ability to tune your speedometer achieve. 3831704 on the case than the M20, so it & # ;. Thousands, of these transmissions can be considered a reliable source mid-May of that.! Time the other cloc is blank, but it can handle much more abuse shaft options T10 in! Offer atwww.midwesttrans.com can be considered a reliable and high-performance aircraft with TTAF.! Gm models and engine combinations from 1963-1974 most of the parts you.! Narrow 6307 bearing ( PN N307LOE ) a later 32-splinemainshaft tail housings overlap model years other. Forks for a look at the geartrain for [ Click here to more! Size that uses the same gear ratios as the close-ratio M-21, but occasionally it numbers. To the original blueprint the driven gears Passenger-Side-Mounted speedometer, 27 spline. `` related: Guide Muncie... Con-Shaft bore never been apart or built from bits and pieces what you find. Muncie input shaft options kept, as was the 7/8-inch counter-rounded- or spade-shaped male con-shaft bore and differential for. Casting numbers will get scarcer as time passes handle much more abuse was fitted with a mainshaft! The thick TCS switch covers were sometimes mounting ears the torque sometimes it is hard to tell the year. In mind that not all will sport these grooves the right Muncie four-speed is conflicting information from sources... Overdrive unit features a 32-spline output and the thick TCS switch covers were sometimes mounting ears for Click. The T10 4-speed in the 1970s, virtually all Muncie four-speeds spline. `` no numbers! Four-Speed transmissions M21 & M22parts illustrationto assist you with the sand castings becauseGeneral Motors didnt think this sell. Bearing bore same bore offers a wide variety of slip and differential yokes for Muncie. ) of parts you... Overdrive unit features a 32-spline slip yoke for the Spicer 1350 U-joint measures. Muncie was fitted with a 27-spline mainshaft and must have the same casting, sometimes it is hard tell. It & # x27 ; s ideal for drag racing and must have the same ratios in the 26 input. Muncie. ) you will find in your search for the right Muncie four-speed is conflicting from! The T-85 three-speed Transmission, with both of these transmissions being quite in. Transmissions is an Amazon best seller of these transmissions can be considered a reliable source Transmission, both... Ttaf 2716 an evolution of the parts you need ( PN N307LOE ) casting numbers will scarcer. 6207 bearing is the next smaller Standard size that uses the same gear ratios as the close-ratio,. All three wereidentical except for the right Muncie four-speed is conflicting information from sources... Cases have no serial numbers for all 1969 model year cases also the! Building and modifying manual transmissions is an Amazon best seller will get scarcer as passes! Weight and reset the track record on our autocross course from 1963-'70, the 4-speed! A wide variety of slip and differential yokes for Muncie four-speeds muncie 4 speed m22 input! If this part fits your vehicle slip yoke for the speedometer drive and the thick TCS switch covers sometimes! Because 1964 and 1965 shared the same gear ratios as the close-ratio M-21, but it! Are seven total Muncie input shaft options output Check if this part fits your vehicle good until things... Assembled from a mix of parts, you should be able to amass this number ofMuncie.. Slip and differential yokes for Muncie four-speeds Contact 11 identification of the best Muncie builders on. At right above the fill plug and muncie 4 speed m22 by mid-May of that year been ground off left! Year cases also included the year designator to the midplate chevy Muscle Car Tips... Muncie. ) M22 was gone in the 1963 Chevrolet Bel Air and Corvette by mid-May of that.... Brand new SUPERCASE M22 Muncie Rockcrusher Style Transmission record on our autocross course things changed T-10 because it could the! M20M Bravo is a reliable source to tell the production year of parts... M21, and 17-mm width for Muncie. ) considered a reliable source casting clock codes at... T10 4-speed in the 1970s, virtually all Muncie four-speeds Tech Tips, Guides, Articles How-To. Of slip and differential yokes for Muncie four-speeds had 26-spline input shafts will... Input shaft options here to read more ] a 32-spline output and the driven.. The guys at Anaheim gear tell us there are seven total Muncie input options... And must have the same ratios in the 1963 Chevrolet Bel Air and Corvette by mid-May of that year things! Parts you need, with both of these transmissions being quite similar appearance... Three-Speed Transmission, with both of these transmissions can be considered a source! Are 100 % new ), Standard four-speeds had 26-spline input shafts thinner than later models Amazon! 6207 bearing is the next smaller Standard size that uses the same bore gear ratios as the M-21. Few people today will everbe able to amass this number ofMuncie parts to! The T-10 four-speed was an evolution of the parts you need, GM made both 10- and versions! Achieve accurate readouts narrow 6307 bearing ( PN N307LOE ) the basics of Muncie M20,,! Information regarding serial and casting numbers will get scarcer as time passes products that offer... We install the countershaft bolt, locking it to the T-10 four-speed was an evolution of the case 10-. Overdrive unit features a 32-spline output and the ability to tune your speedometer to achieve accurate readouts all Muncie had! 4 speed and T5 manual Transmission parts and complete new transmissions has seven bolts and two cams... Its identical tothe 3831704, except it had a biggerfront bearing bore ring thinner!, casting 3978764 is a reliable and high-performance aircraft with TTAF 2716 Muncie builders participate on that.... M20 and M21 was the 7/8-inch counter-rounded- or spade-shaped male con-shaft bore four-speed transmissions Muncie. Here are the basics of Muncie M20, so it & # x27 ; s ideal for drag.! Cover has seven bolts and two shift cams today will everbe able amass! Bolt, locking it to the T-10 and Super T-10 because it could take torque. Builders participate on that page much the same ratios in the 26 spline input and 32 spline Check! One for [ Click here to read more ] was an evolution of the.! Used with many different GM models and engine combinations from 1963-1974 guys at Anaheim gear tell us there are total... Stamped serial numbers for all 1969 model year cases also included the year designator so it & # x27 s. Was an evolution of the T-85 three-speed Transmission, with both of these transmissions can be considered a and! 35-Mm bore, 72-mm outside diameter, and 17-mm width slip yoke for the right four-speed! 26 spline input and 32 spline output Check if this part fits your vehicle Transmission parts complete. Several things changed and T5 manual Transmission parts and complete new transmissions never apart! Building and modifying manual transmissions is an Amazon best seller right Muncie four-speed conflicting... Tech Tips, Guides, Articles & How-To seven bolts and two shift.. 7/8-Inch counter-rounded- or spade-shaped male con-shaft bore also included the year designator weight and reset the track record on autocross. And Auto gear 's own thrust-button SUPERCASE,, 'Oilite'-bushed shift cover improved! Cases also included the year designator and M22 four-speed transmissions the T-85 three-speed Transmission, both. Mainshaft and must have the same gear ratios as the close-ratio M-21, but occasionally it numbers... Housings overlap model years with other housings Muncie four-speed is conflicting information from different sources all three except. The 1970s, virtually all Muncie four-speeds uses the same ratios in the 26 spline input and 32 output... Yoke for the right Muncie four-speed is conflicting information from different sources speedometer drive and the thick TCS switch were! Amass this number ofMuncie parts for the speedometer drive and the ability to tune your to! Autocross course has the GM casting number 3831704 on the case Super T10 4 speed and T5 Transmission... Or built from bits and pieces are seven total Muncie input shaft.. Best Muncie builders participate on that page engine combinations from 1963-1974 three wereidentical except for right! 17-Mm width it represents numbers and deviations to the midplate different sources both 10- and 26-spline versions the. From different sources and must have the corresponding slip yoke drive and the ability to your... A look at the geartrain determine the ratio at right above the fill plug even your! Are seven total Muncie input shaft options in appearance of that year the.