This is a good example of a bad restamp or fake. Perhaps an alloy change as well as a tooling change warranted a new number. Later cases seem to only have one clock. The tranny has been used in well over 200 applications and continues to appear in multiple production applications. This casting design evolved into the 1968-and-up castings. A serial number is stamped into the case by hand, usually with numbered and lettered punches. Some levers are long and some short.
Use the right clutch disc with the correct splines that matches the pressure plate, and the pilot bearing is also needed. Sometimes it is hard to identify a transmission because the grooves are not present on the input shaft. It is unique to the Muncie and was used until the very end of production in all main cases with the exception of the 3831704 case. This was eliminated after 1963. The progression of the 10-spline input identification groove system. Edited July 4, 2013 by Pontiac59.
If this is one of those, it's worth a few bucks, but if it's for a six, who knows. Input shaft, tail shaft and tail shaft housing are different and cannot be used. The numbers seem to indicate 1970 3-speed, not worth much. Some of the best Muncie builders participate on that page. The M-22 was only produced in a close-ratio version, so it will not appear on models with high rear-axle ratios 3.
The casting clock codes are at right above the fill plug. These didn't bolt to just any tranny, there was an adapter about an inch thick that went between the tranny and overdrive unit. The case has several unusual features. Hello again, i have decided to go the 5speed route and am looking for a Borg-warner T5 which will bolt onto the bellhousing, i have found one that is a 1353-055 which is fairly low geared but not so bad as my rear axle is 2. However, there seems to be a big overlap from 1969 to 1970, with both of these cases. I'm going to piss the wife off and print it out on her printer so that I'll have it. All others used the 150-T for 232 through the 304 V8.
This is the second generation of plate casting 3831752. Input shafts may be fine or coarse spline. This page covers automatic trannies. This is for a 1968 production car. By improving the surface area, the synchro slows the gear faster making for smoother shifts. Photo Courtesy Ed Hartnett 1966 and 1967 The 1966 main cases saw some additional design changes.
There is no way to tell the ratio from the outside, unfortunately. Google and Bing get me nowhere. Saginaw transmissions can be identified by the material of the case, the position of the shifter arms and transmission codes. This is usually why certain castings may not correlate with one another. Everything else remained the same.
Often transmission refers simply to the gearbox that uses gears and gear trains to provide speed and torque conversions from a rotating power source to anotherdevice. After mid 1989, used only in 4-cylinder Wranglers. Serial Numbers Serial numbers are stamped into the case. The 1965 versions of this case are identical except that the upper middle extension housing bolt boss on the rear of the 1965 is square rather than round shown on the painted orange case. If the case-casting year matches the model year of the car, you could be on the right track to at least seeing if the transmission is original. Further Muncie identification 3 Muncie 4 speeds were offered. Missing Entry: Vin Code V for 2.
These cases were run in conjunction with the 3851325 case. The rear bearings are the same. By the start of 1969 these cases and all future cases had the drain plug boss drilled and threaded. They are believed to be 'Jeep only' transmissions. It is a date code for when the transmission was assembled based on the model year, not calendar year. However, it is thinner by 4 mm and smaller in diameter by 8 mm.
All main shaft synchros were fiber lined steel rings to improve ring surface area while 5th remains bronze. Most of these castings look very rough. The casting number depends on the date the service case was installed. Besides first gear is much too low to be usable. Feel free to upload pictures and ask questions.
The latest posts on transmissions from the. The one on the floor is a 6 cylinder box. Along with Plants and some model break downs over years. These cases have no serial numbers because they were never part of an assembly. Generally used in straight and V6 and small block engines. The main internal differences in the 3 types of transmissions are listed in the parts below. From left to right, early M20, M21, later M20, and M22.