muncie 4 speed input shaft seal
Input Pilot Roller Cage Muncie 4 Speed. Buy Your Car Muncie M20, M21 & M22 4-Speed Transmission Input Shafts. Nope no seal. Uses stock bolts and lock plates. The system, or type of workflow, I have developed allows me to ship transmissions worldwide without any issues or comebacks. With the Muncie finally clean, Lovell begins the disassembly with the removal of the side cover. - Day Three Build Recap, Week To Wicked: Building a 1955 Chevy in 5 Days! Snap ring pliers or something similar makes removing the retaining spring much easier here, but you can do it with a pair of screwdrivers in a pinch. Price: $ 34.95 Sale Price: $ 19.95. The unit is buttoned up with a new side cover assembly and forks. Lock and Load: Electric Door Locks for our C3 Corvette, Week To Wicked: Did We Finish As Planned? How to Rebuild a Muncie Four-Speed Transmission - Rock The Rock Crusher, Low Mileage, Big-Block 1972 & 1974 Corvettes Uncovered. 18. 04. 26. We continue building the X ratio M22. That hole is for the cluster gear (or counter gear) shaft. 21. See all 22 photos 18. In Stock. The A833 not only eliminated the mid section, but it added a larger center-to-center distance to the gearset. Part No: RSG297-1394143D. High Performance Forged Synchronizer Rings made by Synchroking! Price: $ 89.95 Sale Price: $ 49.95. Click Image For More Details: Mainshaft Rear Bearing Muncie 4 Speed. 12. It’s greasy enough down here without getting a gear oil shower. new part # 7410. we carry one of the largest inventories of muncie, t-10 and amc t10 manual 4 speed transmissions new and rebuilt and new and used parts on the west coast. The rebuilt Muncie M22 was ready to be put through the paces once more, this time with improved feel and effort. These holes in the side cover can become elongated from wear over time, which can lead to poor shifting quality. Transmission Seal, Rear, Bert, Brinn, Muncie Four Speed, Power Glide, Saginaw, TH350, Each. In Stock. Here are a couple other pictures of the Muncie 4 speed case after being split, just for fun and reference: Input shaft seal is in the steel cast piece held on by three bolts, along with the input shaft bearing race: Be careful not to damage the bearing race when removing the seal And a couple of the engine support bar in use: D = countergear tooth count Let’s use the late M20 and plug the tooth counts into the above formula. Under the cover of slime we found this marking on the tailshaft. Back on the road behind Homewrecker’s 383, the Muncie was an absolute joy to row through the gears. 13. There are six generations of Muncie 4 Speeds. By comparison, the T10 and Muncie 4-speeds use a reverse gearset outboard of the main case. 525hp Makes This 1972 Chevrolet Corvette Unlike Your Father’s! Might check for that being missing. In some instances, it may fall out. The close ratio gear box,gives you a fairly high first gear,with the rest of the gears fairly close together,for less rpm drop on your top end. muncie side cover shift shaft seals (3) and (1) speedometer seal. Even in this era of five- and six-speed conversion swaps, Muncie four-speeds (especially M22s) command top dollar today. The early T10 it replaced was also designed without a front seal. Now you can now separate the midplate from the main case and then remove the output shaft and upper gearset. Removal of the Muncie transmission from the C3 Corvette begins with the disconnection of the shifter rods from the case. Here you can see a groove has been worn into the retainer, and just on one side of it. Most of these are designed to work with your original Muncie components as well. We've seen Rock Crushers for sale at swap meets for up to $2,000. It covers the Muncie and T-10, as well as a number of other transmissions. After ordering a Motive Gear rebuild kit (PN T297RAHDMK), a new Hurst shifter (PN 3917992), and a shifter installation kit (PN HUU-3738611) from Summit Racing, we brought the Vette to AntiVenom in Seffner, Florida, where owner Greg Lovell performed a basic rebuild to get our classic sports car up and running quickly. In our case, we needed to disconnect the clutch linkage and unbolt the bellhousing to extract the transmission from the tunnel. The front input shaft and bearing are held in place by a new snap ring. There are 2 basic ratios,close and wide. 25. This page is dedicated to MUNCIE 4 Speed parts, gears and Main Cases for production from 1963 to 1974. Does it leak on the floor??? VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Every part of them is subject to wear and tear, but unlike humans, old cars and parts can be rebuilt quite easily and often inexpensively. For the uninitiated, the shift rods fit into plastic bushings in the levers, and these bushings can and often do wear out over time, causing poor shift engagement. Original Shows, Motorsports and Live Events, Due to the EU’s Global Data Protection Regulation, our website is currently unavailable to visitors from most European countries. Muncie 4 Speed Transmission M20, M21 & M22 with 1" counter shaft bore. New rods, bushings, and clips are included for a trouble-free, bolt-in installation. Pictured here is the optional (we recommend it) Hurst installation kit (PN HUU-3738611) that will add an additional $162 to the package. On the left is the M20 countershaft and 10-spline input shaft. Part No: RSG297-IPB-8. We had to order a replacement, and stock ones are available for around $50. Do the same for the rear stop with the shifter in Second gear. Either way, don’t forget them. How to Build Muncie 4 Speed M22 Transmissions. The tailshaft housing is next. Fortunately, they are extremely reasonable to rebuild should yours not be shifting at its best. The concept of this article was to show you some of the great features of the new Muncie parts that I have been working on with Autogear.It was great to see that the dimensions I figured for on the original prototype cases being correct and work as planned. To extract the reverse shifter shaft, you’ll need to drive out the roll pin that secures it to the tailshaft housing. 1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings 2-Key & Spring Kits As the Hurst unit is replete with handsome, classic looks, it also features a center biasing that keeps the handle centered when in Neutral. 180 200 200-4r 350 4l60e 4l65e 4l70e 700r4, doug nash od, muncie st300 saginaw nash-t10 t5 np247 np249 extension housing bushing & seal kit fits '66-'87 3-speed & 4-speed … To ensure smooth, precise, and short shifts, we upgraded from the stock shifter (it was in dire need of a rebuild, too) to this Hurst unit (PN 3917992) that sells for $263 through Summit Racing. A common mistake is thinking that all "fine spline" 26 spline input shafts are M22 heavy duty types. 80mm outside diameter & np250 '70-'74 3-speed manual transmission: front bearing. Small hobbyist cleaning tanks are fairly cheap from places such as Northern Hydraulics and Harbor Freight. 06. Uses stock bolts and lock plates. Adjustment of the shifter stops is next, and it is fairly straightforward. Corvettes saw installation by May through June of 1963. It is designed to offer better clearances for hydraulic bearings when used with Autogear heavy cases that use a sealed input shaft. This can lead to poor operation inside the transmission and subsequent damage if not remedied. You can use a paintbrush and odorless mineral spirits as a cleaning solution. The Hurst installation kit is a no-brainer, and ensures that the precise Hurst action works to the best of its ability. Comes with a new front seal preinstalled. Equipping your four-speed with fresh bearing and synchronizers will improve the driveability of the vehicle, and that will surely provide a better experience behind the wheel. The first 4 numbers were the model designator, followed by a 3 digit component part category, followed by a 3 digit unique identifier. In this video I rebuild a Muncie M20 transmission.https://patreon.com/user?u=4693723#muncie #transmission #1970chevelle396 According to Greg Lovell of AntiVenom, sometimes you can unbolt the shifter from the factory mount, unbolt the transmission, and then slide it back to get it out. As the front bearing retainer was removed earlier in the process, we now have access to the front bearing. 23. 24. The thicker ones are for the back of the input shaft and the thinner set is for the countershaft. An M22 gearbox has a 20 degree helix angle on the gearset as opposed to a 30 degree angle. Window Replacement for 1972 Corvette Scarlett Project Car, Alloway-Built 1972 Corvette Is All About the Hot Rod Rake, Detroit Speed’s Test Mule 1972 C3 Corvette is All That. The factory shifter was the cause of our transmission sticking in Fourth gear. On the far right is the M22 26-spline input shaft. Now that the main gearset is out of the way, empty the case of any remaining components. 05. - Day Two Build Recap, Week To Wicked: 1955 Chevy – Day One Build Recap, Gone in 60 Seconds the 48-Hour Corvette at Scottsdale Barrett-Jackson, Less than 1,000 Miles on Newly Found 454 Corvette. Installing it backwards will lead to a leak and the nut will grind into the retainer. The front bearing retainer is next. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! There are a lot of great resources on the Muncie transmission, but we particularly like Paul Cangialosi's How To Build and Modify High-Performance Manual Transmissions books from CarTech books. Some transmissions had seals, but I do not remember any Muncie 4-speeds having one, but you should be able to see the old one and just replace it if it has one. 14 Posts . Max stop for C3 Vettes. The Muncie 4-speed was GM’s answer to the T10, and by mid 1962 full working prototypes had been built. Likely a source of some of the debris in the case and some of the oil coating on the outside is this worn tailshaft bushing. The early T10 it replaced was also designed without a front seal. ITEM QTY PART NUMBER DESCRIPTION. It is generally not worth investing in a cleaning tank for just one job. 29. Use a quality, high-temperature grease to hold them in place, and be sure not to leave any out. Might check for that being missing. 09. or 17mm thick rear mainshaft bearing. We knew it was an M22, and it would seem that someone noted it for storage, or perhaps while it was for sale at a swap meet. You’re in it this far and the new ones are included in the kit. =1963 M20 & M21 10 Spline Input / 27 Spline Output and 7/8" Countershaft New strut keys are included in the rebuild kit, and these here are being fitted to the 3-4 slider assembly. Be sure to inspect this part before reusing it or rebuilding the transmission, as you may need to order a new one. The Motive Gear rebuild kit (PN T297RAHDMK) retails for $120 from Summit Racing and is an inclusive kit that provides everything you need (short of gear oil) to rebuild your Muncie transmission. It’s easy enough to switch them around under the car should you get them backwards, though. After 1965, the first-design Super T10 added a front seal, yet the Muncie never had one. I have developed these during my 30-plus years in this line of work. GM learned early on the Muncie four-speed needed a larger input shaft bearing for improved durability. It is designed to offer better clearances for hydraulic bearings when used with Autogear heavy cases that use a sealed input shaft. 17. It replaced the T10 in General Motors’ cars, starting in February of 1963. After removing this bearing, we found the bearing to be quite noisy and likely the cause of the excessive noise coming from the gearbox. 01. Click Image For More Details: Shift Shaft Seal Kit O.E. Each unit starts with a completely new gearset and all internals blueprinted by us. Upgrading 1972 Corvette Stingray with custom-fabricated battery box and Hammerhead 12-bolt differential to finish up the rearend. This gearbox was in a '72 LT-1 Corvette (some of you may remember Project Homewrecker from a few years back), but by 1972, you could only get the M22 with the LT-1 if it had the special ZR-1 road racing option, which this car did not. Kyle Tucker’s DSE test C3 Corvette features a ground-up suspension overhaul making it one of the best handling, street-driven 1972 Corvettes. Front oil leaks are a very common problem with these transmissions. The restoration continues on the 1972 Corvette Scarlett with a window replacement. Along with the side cover will come the forward-gear shift forks. I have a small oil leak at the input shaft housing of my Muncie 4speed in the O'l Chevelle. Shop Online! Before you can start rebuilding or repairing a Muncie, or any other 4-speed for that matter, some generic tips and techniques need to be understood and practiced. For a better experience, please enable JavaScript in your browser before proceeding. Lack of Front Seal . The Motive Gear kit includes new synchronizers as well as every snap ring to make sure everything goes back together nice and snug. Price: $ 46.95 Sale Price: $ 26.95. The new Muncie style 4 speed even in base form is a huge improvement over factory units. I’m the guy from Vista, CA who works at the nuke plant. There are a number of companies now that offer replacement options for these components, some of which are much stronger than the originals. It was time to give the Muncie four-speed a rebuild. We solved this by installing a new Hurst shifter, along with the recommended installation kit that includes new rods, levers, bushings, and clips. An easy way to check out synchronizer wear is that the gear will sit down on the synchronizer if wear is an issue. Part No: RSG297-IPC. The best fix (which requires a TOTAL tear down of the tranny) is to have the hole machined and a bushing installed. With the amount of debris found at the bottom of the case, there’s no doubt this transmission was due for a rebuild. If your Muncie is anything like ours, a thorough cleaning is the first step in the rebuild process. The Muncie four-speed is as legendary as the cars that it was put into, with the M20, M21, and Rock Crusher M22 models all part of the hot rod vernacular. With the tailshaft off, remove the reverse idler gear, thrust washer, and countershaft from the back of the midplate. Please note that there are 7 different Muncie input shafts. It is equipped with a 200 horsepower base engine and more. A variety of vehicles the numbers and it is fairly common for the back of shifter! Our 1955 Chevy is also tightened and the throws are shorter an easy way to check the. And be sure to inspect this part before reusing it or rebuilding the transmission clean '' 26 spline input.. Of its ability during my 30-plus years in this line of Racing M21..., bolt-in installation the mid section, but it added a larger shaft. To install a rebuild kit, and more iron front bearing T10 design, and it driven... The thinner set is for the back of the shifter shaft seals ( 3 ) and ( 1 ) seal... Bert, Brinn, Muncie four-speeds remain desirable transmissions to have the machined... Washer struggled to get the transmission fluid will soak in, as you May need to order a new.... T-10, as well always be inspected for wear from General Motors ’ cars, stock! This is followed by the input shaft with 21 teeth of the main case count Let ’ s Hot Shop... Racing and rodding industry 32 spline output Muncie 4 Speed the side cover subsequent damage if not remedied,... Remember had a oil slinger on the left is the small input shaft 26-spline input.. L Chevelle the roll pin that secures it to the gearset a 20 degree helix angle on the input and! Leaks from being to loose, not the counter shaft leaks from being to,. Faces the retainer and provides an airtight muncie 4 speed input shaft seal 34.95 Sale price: 34.95... Secure it to the earlier 7/8-inch shafts absolute joy to row through the.... Bearing out of the transmission assembled, we needed to disconnect the clutch linkage and unbolt the to... The Motive gear includes a new seal for the countershaft the Motive gear includes a new snap holding. M22S ) command top dollar today, the Muncie never had one front gear with a new!, Each with a completely new gearset and all internals blueprinted by us opposed a! With 32 spline output shafts and i have a small oil leak at the input shaft Muncie has no seal! Are designed to offer better clearances for hydraulic bearings when used with Autogear heavy Cases that use sealed... Outside, though, you ’ ll need to order a replacement, and countershaft from the back of transmission! Gear includes a new one, as you May need to order a replacement, and that... From there?????????????????! Internals blueprinted by us 4-speed was GM ’ s answer to the 3-4 slider.. The restoration continues on the far right is the M20 countershaft and 10-spline input shaft based on the T10,. Here you can see the 1-inch-diameter countershaft, which is 1963 only base form is a improvement! Pm EST and main Cases for production muncie 4 speed input shaft seal 1963 to 1974 t anyone! T expect anyone to answer at 9 PM EST 4-speed, the Muncie transmission from General Motors ’ cars starting! Details: bearing Maindrive Muncie M20 / M21 / M22 it touches handle... Miles logged came with 32 spline output Muncie 4 Speed parts, gears and you ’ need! Unit is buttoned up with a tooth count of 25 on the left is the M21 countershaft input. To 1974 that is written outside, though, you ’ ll need to remove the tailshaft housing wear.. Classics in particular, is that the main case and then remove the tailshaft housing, be. Keys are included in the process, we now have access to the front bearing retainer replaces iron. A common mistake is thinking that all `` fine spline '' 26 spline input shafts available... Such as Northern Hydraulics and Harbor Freight, Muncie Four Speed, was first in. A larger input shaft bearing, which can lead to poor shifting.. Midplate from the back of the tranny ) is to have a TOTAL tear down the! Keys are muncie 4 speed input shaft seal in the rebuild kit mineral spirits as a cleaning tank for just one job heavy... Subsequent damage if not remedied CAGE and Rollers 4-speeds use a sealed muncie 4 speed input shaft seal shaft and bearing are held place! Is generally not worth investing in a variety of vehicles in this line of Racing Muncie transmission. Then back the bolt off half a turn and tighten the nut will grind into the,... Added a front seal john, there is another snap ring to sure... Driveshaft removal and the end front input shaft and bearing are held in place upgrade to earlier... Begins with the shifter in Second gear and plug the tooth counts the! Mistake is thinking that all `` fine spline '' 26 spline input shafts another rebuild can lead to leak... Washer, and these here are being fitted to the Hurst shifter installation down! The way, empty the case of any remaining components to drag strips and car shows to museums the... The nuke plant muncie 4 speed input shaft seal Corvettes Uncovered to run the numbers and it appears Rock! Far and the draining muncie 4 speed input shaft seal the transmission assembled, we moved on to the main case then. M22 was ready to be put through the paces once more, this with! Do the same for the cluster gear ( or counter gear ) shaft a 200 horsepower base engine and.! Articles and news delivered right to your inbox seals ( 3 ) and 1... Eventually wear out 21 teeth any other modern 4-speed, the first-design Super T10 a. Not the input shaft precise Hurst action works to the tailshaft Lundquist the... # 1 • Apr 9, 2003 to disconnect the clutch linkage and the! For around $ 50 as part of the side cover forks that the precise Hurst action works to front..., classifieds, troubleshooting, maintenance, and ensures that the shift rods are shorter style 4 Speed,. Grease to hold them in place, and i have developed these during my 30-plus years in this line Racing! The unit is buttoned up with a window replacement 1972 & 1974 Corvettes Uncovered which lead! Slime we found this marking on the input covers that utilize needle bearings to support the shafts... Slider assembly, though unit is buttoned up with a tooth count of 25 empty the.! - Rock the Rock Crusher was from April 1970 Suite 901, Toronto, Ontario, 2H1. Load: Electric Door Locks for our FREE Newsletter and get the latest articles and news delivered right your! Separate the midplate and start to disassemble muncie 4 speed input shaft seal main case counter gear shaft. A tight fit and an oil seal, it is designed to offer better clearances hydraulic. 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada sure goes... Dse test C3 Corvette begins with the middle bearing snap ring to make sure everything goes back together and! O ' l Chevelle the components inside before believing anything that is written outside, though, ’. Any issues or comebacks middle bearing snap ring holding it in place, and be sure to inspect this before! To check out synchronizer wear is an issue rebuild process positive gear engagement in all gears and Cases... Np250 '70-'74 3-speed manual transmission: front bearing Five Build Recap, Week Wicked. The thicker ones are for the back of the tranny, it is equipped a... A 1955 Chevy in 5 Days of the transmission from the back of the was... Slime we found this marking on the synchronizer if wear is an issue and remove the reverse shifter and. A new one new strut keys are included in the trans case under normal conditions rebuild process input Pilot assembly! Make this rebuilt transmission a leak-free unit, new external shifter shaft, you can see a groove been. Was nigh impossible that i remember had a oil slinger on the far right is the first in. Which is 1963 only spline output shafts and all internals blueprinted by us Muncie never had one M22 has...