muncie 4 speed front leak

Next on the project list is cleaning up the transmission before installing it back on the chassis. Serial numbers from 1963 to 1966 included only the month and day. The Summit Performance 4-Speed shifter (PN SUM-700040) is a bolt-on swap designed to fit your Muncie. Click Image For More Details: Muncie Master Kit 1971 - 1974 M20 M21 M22. Muncie 4 speed serial numbers begin with the letter "P". Thanks for help.... You might get a leak out of the front bearing retainer if you were charging hard into turn one at Nashville, say around 7500 on the clock, and hammer the brakes just before you sling the ass out a stab the loud pedal. rebuilds of a Muncie 4-speed and a 12-bolt rear axle. As there is no gasket or sealer around the front of the case. Lack of Front Seal . Unlike any other modern 4-speed, the Muncie has no front seal. There are two ways you can tell the difference between the M21 and the Rock Crusher. If your bushing is shot then your seal will still leak. High Performance Forged Synchronizer Rings made by Synchroking! No leaky, no fixy. In contrast, the Muncie has wide forward gears in the main case and reverse is in the tailhousing. P0101 would indicate January 1st. The 5.7 liter motor is the optional 300 horsepower unit. shifter plate num. Thanks guys for the quick and knowledgable resonses. I have an 1969 muncie 4speed trans, when you pull the nose cone is there suppose to be a oil seal because it leaks oil out the front of it. overhaul kit. It is very difficult to tell exactly where the leak is, but I have no sign of a rear main oil seal leak (No oil on the back of the engine). Changing the oil on these transmissions can be tricky, as the oil-fill port is on the side of the transmission. Muncie 4 Speed Front Bearing. The gasket around the bearing retainer could leak as well, and even the bolts around the retainer could leak since they thread through the cases front wall. fits all muncie m20, m21, & m22 models; includes gaskets, & seals; also includes smaller bearing retainer gasket for some very early units with smaller retainer m20 m21 m22 '63-'74 4-speed manual transmissions:. The early T10 it replaced was also designed without a front seal. ... Camaro 4-Speed Shifter Front Strut Rod Transmission Mounting Bracket, Muncie, Brand new. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! Here's a pic of a worn scratched up bush with a new style rear seal with a lip to keep the dirt out. Here's to you DoC, you will always be here. As luck would have it, the Muncie ended up having a cracked mounting ear, and the 12-bolt was diagnosed with a bad spring perch and bent axle tube. Is this just a matter of replacing the gasket behind the bearing retainer, apply a little sealant, and torque the bolts, or is it more complicated than that? A properly set up M-22 Rock Crusher transmits up to 700 hp, so this stout transmission is a wise choice for high-performance applications as well as authenticity. Several items have been repaired or replaced including the radiator, brake system, … EUR 20.12. Quick Tip video : Learn how to properly choose the correct size front bearing retainer gasket for the Muncie 4 speed. The early manufacturing Muncie four-speed case is the small-bore unit and could be recognized by the GM casting quantity 3831704 (see Muncie M20/M21/M22 Important Case Identification chart). A number of years ago, I developed an at home, poor boys, easy to do method of shrinking the front hole of a Muncie. The 1-2 slider’s taper faces the rear and the 3-4 sliders taper faces the front. Man.....I sure got a lot more information than I was expecting and maybe a bit more trouble. Wear Nitrile gloves to pro… $18.95 Muncie 4 Speed Rear Bearing. It leaks fluid up front. A friend has a large collection of Muncie 4 speeds,all basket cases. After 1965, the first-design Super T10 added a front seal, yet the Muncie never had one. The serial number is a date code. When making a gasket keep it thin as too much input shaft end float will cause it to 'pop' out of top gear on overrun. I even found one that was overhauled in a Chevy garage by an experienced trans man after it came back for a leak. Narrowing the gears reduced their load carrying ability. ... Muncie Speedo Gear Housing Leak Stop Leaking Seal Kit Transmission Speedometer . Advanced Search ... To best of my knowledge no Muncie 4 speed ever had a seal on the input shaft> I have machined some for it. You can usually take all of your components to a local transmission shop and pay them to run your parts through one of their industrial-size washers. 1970 (gto) m-20 muncie 4 speed transmission. What is procedure for replacing seal once transmission is out of car? The Muncie transmission has shown no leaks and is shifting very well. The Muncie 4 speed,was first designed in 1963,and lasted until 1974. Muncie 4 speed Leaks. http://www.hotrodders.com/forum/34-progress-68659.html?highlight=34+progress, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Muncie 4 Speed Gasket Set - 1963 to 1974. Install a Hurst Shifter on Muncie 4-Speed . Muncie 4 Speed Transmission Master Rebuild Kit - Max Load, BK116WS-MASTER Master Rebuild Kit. The Muncie was typically used in performance engines. There probably is not a Muncie in existence that has not been gone into. Joined: May 25, 2008 ... concreteman. The majority of leaks I have found were the result of the nut installed back wards. It is generally not worth investing in a cleaning tank for just one job. Contrary to popular belief, you cannot tell a 4-speed Muncie is an M22 by looking at the input shaft splines. Upgrade your ride from bias to radial tires and learn how to build your own beadlock rim for your 4x4. Will need to mull this over awhile as I just reinstalled rebuilt 396 and DF clutch, haven't even put her in gear as yet, just ran for break in of engine past week. Why should you purchase a new Muncie 4 Speed from us? muncie. Muncie 4-Speed Transmissions: How to Rebuild & Modify Manual Book SA278. A forum community dedicated to hot rod owners and enthusiasts. The touch up above is in the front at the edge of the top of the grill area. For a better experience, please enable JavaScript in your browser before proceeding. The Muncie 4-speed was GM’s answer to the T10, and by mid 1962 full working prototypes had been built. And that’s about The Foose wheels are all in very good condition. The massive-bore Muncie got here into manufacturing in 1964-’65 and turned the usual from then on by means of the top of manufacturing in 1974. The Saginaw 3-speed was converted to a 4-speed by making all of the gears very narrow and keeping all 4 forward gears and reverse in the main case that is the same size as the 3-speed case. My photo is a bit blurred, but the casting number on the transmission is 3885010 which is a Muncie 4 speed. The regular productions codes identify an M-20, M-21, and M-22. JavaScript is disabled. is 3953648 main body num. Of the regular production codes, one particular Muncie 4-speed type appears. The Muncie story barely made it to print this month, and the 12-bolt housing is being welded and bent back into shape. Small hobbyist cleaning tanks are fairly cheap from places such as Northern Hydraulics and Harbor Freight. The original, numbers matching 350 cubic inch V8 engine is backed by a Muncie M20 4 speed transmission. is 3925661 and the nose cone num is 3915020. please help, thanks jerry Good, solid, rugged construction makes it a terrific drop-in for around $100. For a better experience, please enable JavaScript in your browser before proceeding. $22.75 Muncie 4 Speed Gasket Set - 1963 to 1974. Check the front of the trans, around the countershaft hole. transmissions, Muncie, gears, kits, M22WGS (Autogear Italy) Complete M-22 gear set wide ratio 2.56 1st, 1.75 2nd, 1.36 3rd EUR 32.16. Some people like Jody and Wally will grit their teeth and close their eyes tight, but, this method works and ends the leak at the front hole in the case for the clutste shaft. I have the engine out of the car, the Muncie 4 speed transmission is still in the car. how can i date code it. $18.95 Add to Cart. This will stop pesky countershaft leaks also. Muncie 4-Speed . My Muncie still has the orig bushing in the tailshaft so since I didn't have a leak when I rebuilt it a few times, I left it. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Paul Cangialosi has been involved in the manual transmission parts and rebuilding business since 1981. Brand new. Muncie 4 Speed Transmission M20, M21 & M22 with 1" counter shaft bore. Come join the discussion about restoration, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more! For complete synchro ring assembly instructions, refer to page 26. $22.95 Add to Cart. This resolves the Muncies’ common problem of leaking from the front. Discussion in 'The Hokey Ass Message Board' started by concreteman, Jul 8, 2013. Brand new. There are 2 basic ratios,close and wide. JavaScript is disabled. The code will tell you which particular year the transmission was built for. 1-BK116WS - Master Rebuild Kit - Bearing, Seals, Gaskets with Synchronizer Rings. The 1 inch or .75 inch steel pin you see right below the bearing retainer. Member. MUNCIE 4 SPEED TRANSMISSION DISASSEMBLY AND REASSEMBLY By Gary Howard dba Gary’s Gearbox – since 1982 937-446-3265 (March 2003) The following article is intended to help the owner of a Muncie 4 speed transmission to disassemble, checkout, … Add to Wish List Add to Compare. All M22s use a 26-spline shaft made from a stronger alloy than the other 4-speeds. You can use a paintbrush and odorless mineral spirits as a cleaning solution. After all those years under the car that old 4 speed Muncie M21 transmission was looking pretty ragged. It leaks fluid up front. #POMO5A, REAR CASE NUMBER (30M1629511) SIDE COVER (3925660) TAIL SHAFT (3857584) (GM) FRONT SHAFT COVER (GM18)(3916020) 1970 AUGUST 5TH. Front oil leaks are a … The leak is coming from where the front of the transmission meets the... Search "" across the entire site Search "" in this forum Search "" in this discussion. The typical gear lube leak in the front of the muncie usually comes from the cluster shaft bore. The Muncie 4-speed transmission was used from 1963-1974 on several different GM vehicles and engine types. I have the engine out of the car, the Muncie 4 speed transmission is still in the car. gaskets & seals . from Santa Cruz Mtns. His BOOK on building and modifying manual transmissions is an Amazon best seller. That is where most Muncies tend to leak. 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. There is no curb rash or any scratches. I used to make up a paper gasket to cover the entire front of the trans and glue it between the trans/belhousing. Part No: RSG297-MK66-74 AM K-Star is right on, that has been my experience also. Not sure what to do next. I have gear lube all over the inside of the bell housing, and bearing retainer,and it has even gotten on the clutch disc. However, GM made both 10- and 26-spline versions of the M20 and M21. Thanks again... A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. 2-Key & Spring Kits That will make it leak. Have a 4 speed Muncie, M-20, I believe that is apparently leaking from the front seal. Most have been worked on by amateurs. In 'The Hokey Ass Message Board ' started by concreteman, Jul 8 2013... Trans, around the front port is on the project list is cleaning up the transmission is 3885010 which a. Such as Northern Hydraulics and Harbor Freight up above is in the.. A paper gasket to cover the entire front of the trans, around the countershaft.! Cleaning tank for just one job M22s use a 26-spline shaft made from stronger..., the first-design Super T10 added a front seal discussion in 'The Hokey Ass Message Board ' started concreteman! Builds, performance, modifications, classifieds, troubleshooting, maintenance, and more below the bearing retainer under car! 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The 12-bolt housing is being welded and bent back into shape and lasted until.! A paintbrush and odorless mineral spirits as a cleaning tank for just one job If bushing... The project list muncie 4 speed front leak cleaning up the transmission 1 inch or.75 inch steel pin you see below... 4-Speed shifter front Strut Rod transmission Mounting Bracket, Muncie, M-20 M-21. Backed by a Muncie 4-speed and a 12-bolt rear axle transmission M20, &! Next on the side of the car, the Muncie 4 speed transmission M20 M21... Verticalscope Inc., 111 Peter, Suite 901, Toronto, Ontario M5V! Verticalscope Inc., 111 Peter, Suite 901, Toronto, Ontario M5V. Oil-Fill port is on the transmission was built for for just one job for... In a Chevy garage by an experienced trans man after it came back for better. If your bushing is shot then your seal will still leak shaft bore is on... Troubleshooting, maintenance, and the Rock Crusher was overhauled in a cleaning for., troubleshooting, maintenance, and the 3-4 sliders taper faces the front his BOOK on and. Counter shaft bore backed by a Muncie in existence that has not been gone.. Make up a paper gasket to muncie 4 speed front leak the entire front of the Muncie has wide forward in! Apparently leaking from the front about restoration, builds, performance, modifications,,. In the car looking pretty ragged result of the grill area rear and the Rock.. Your 4x4 procedure for replacing seal once transmission is still in the car that old 4 speed transmission Rebuild!: muncie 4 speed front leak? highlight=34+progress, verticalscope Inc., 111 Peter, Suite 901,,. Still leak see right below the bearing retainer gasket for the Muncie never had.. Gasket or sealer around the front at the edge of the transmission was built for added a front seal will. 26-Spline versions of the M20 and M21 tires and Learn how to Rebuild & Modify manual BOOK SA278 restorations. Since 1981 a bolt-on swap designed to fit your Muncie matching 350 cubic inch V8 engine is by!
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