When you won't spend your own time doing the base research. These gear boxes were used when power levels exceeded the limits of the early Borg Warner T10 4 speed. Main difference I've seen over the years, an M21 will destroy gears, an M22 will blow the case - when used with some real power and traction. Thanks for all the links. The M22's are both close ratio and the M21 is a wide ratio. The tonner clutches are not really necessary unless you tow or carry a heavy load a lot of the time.
Very nicely built piece with positive shifts. Yet one more method to determine the Muncie is by way of stamped codes within the case, which point out when the transmission was constructed at Muncie see How To Learn Muncie Construct Date Codes chart. The actual body build date of the car is June 2, 1965. I have also banged it at 7000 rpms+ with just a flick of the pedal and foot to the floor. On the left is the M20 countershaft, which is definitely recognized by the bigger 29-tooth gear.
I blew the original clutch in a normal 2nd to 3rd shift. The first substantial piece of documentation I found concerning the 1965 M22 transmission was the complete breakdown sheet for all M22 transmissions from 1965 through 1974. The transmission designation is now M22, designating that this car was final assembled with the aforementioned transmission. Kinda nice if you want the Muncie look and an overdrive. Install the fourth speed synchronizing ring on main into position with a soft hammer. Several things are needed to identify a Muncie correctly. Sorry dude, I just think it's kind of disrespectful to ask such a basic and open ended question on this forum.
Back in the day, the cheapo way to get a speed shift trans was to take every other tooth off the syncros to get em to move faster through gear change. I was just wondering what the differences were. The fact that it whines so loudly makes the M22 better in my book. I'm 53 and still love bangin gears and can still do it but I've found that getting older makes me alittle more apprehensive when the tach hits 7000. Shift side cover 3-4 the lock pin. Synthetics also have a different consistency then a natural fluid.
One important point is that if you have a Muncie dated with a December build date it was actually built the prior year. The work he did for me as editor of two car collector magazines was always well received by the readers. I'm going to let go of the rebuilt M21. In fact, restorers and rebuilders will have a tendency to re-stamp the date code to go well with a specific restoration. Press speedometer drive gear onto the mainshaft using a suitable press plate such as J-1453. Any thoughts please this subject.
Some Muncies also carry ratio I. These new parts include: include legendary Italian gears and shafts by Masiero, synchronizers by Euroricambi and Auto Gear's own SuperCase, nodular iron midplate, 'Oilite'-bushed shift cover, improved tailhousing and investment-cast steel shift forks. M-21s held up pretty well for the abuse most of them got. I am very happy with how cool it is and the obvious attention to detail and quality Jeff puts into his Muncie. There are three basic types of Muncies: M20, M21 and M22.
. I always thought I thought they were all Muncies in C3 vettes. Position the reverse idler gear thrust washer the front gear inside the case. The large rear tires probably contributed. No matter how good you are though, you'll still break one every once in awhile. Our factory transmissions are dyno tested before leaving the factory, ensuring the highest quality, We offer a no hassle 12 month warranty, performance guaranteed.
Alan has the ability to multi-task several projects at a time and move them forward. An extra heavy duty close-ratio version M-22 was also offered on many of the big-block high-performance models. This photo shows the 1965 M22 with the side cover off as it was removed from the unrestored Corvette. I was just wondering how many different variations there are of the Muncie 4 speed and which ones are best and for what reason s. Install the rear bearing retainer fig. This way you don't need a 5 speed with this wide ratio 4 speed and it keeps the car far more original. I can't explain it but I think you get the idea.
These new requirements led to the demise of the Muncie and the reintroduction of the improved T10 called the Super T10. Other than the bearings and synchros all of the original 'hard parts' are still there. When you call he answers the phone. Just by chance, he had just been contacted by someone who said he had a 1965 M22 transmission and was looking for specific information pertaining to the possibility that Muncie built these transmissions. The 27-spline tail shaft housing.