Note the single groove, meaning an M21 close-ratio. If you have looked very carefully and find no numbers there, chances are your block is classified as a Replacement Block THM400 - The THM400 was GM's Heavy-duty 3-speed transmission used from 1964 to 1990. We need to make note that the early Muncie transmissions offered between 1963 and 1965 utilized a 7/8-inch countershaft in the cluster gear, and those manufactured between 1966 and 1974 used a 1-inch diameter shaft. I have four transmissions, which I need to identify, before I can proceed. The iconic Powerglide automatic transmission has Powerglide printed on its transmission pan. From complete engines, to torque converters to Monster in a Box, we've got all your HP needs covered. Generally, in 68-71 vehicles, the switch is located on the carburetor. It functions correctly. (AODE & 4R70W). The center two digits are the day of the month. It was used on large displacement, high . Use the following information to compare physical description of your Chevrolet or GMC manual transmission in order to identify what model transmission is, MySpace !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); 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. The best way to identify a GM automatic transmission is by observing the transmission pan. Powered by, Badges | Before you here are the basics of Muncie M20, M21, and M22 four-speed transmissions. Do you know how to tell the difference between a Saginaw, a T10, and a Muncie four-speed? . 14. You can check online auto repair websites, as some have free decoders. Even the Muncie has its limitations, but they are significantly higher than the Saginaw or Borg Warner. GM produced many transmission variants over the years, we included some of them here, but our main focus is identifying the fluid pans for Powerglide, Turbo 350, and Turbo 400. Dave Cruikshank is a lifelong car enthusiast and an editor at Power Automedia. The Turbo 400 was GM's heavy-duty three-speed transmission used from 1964 to 1990. Before using any method to find your transmission type, you should find out if its a manual or automatic transmission. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. Set up the wheel chocks behind the tires so theyre firmly on the ground. Muncie transmissions also tend to get performance improvements such as a gear ratio change and stronger internal parts. Outside that, you can push in your clutch and hold the brake. // ]]> Ning Network Name Goes Here. The Fora platform includes forum software by XenForo. following numbers are the month first followed by the day of the month. Turbo 400 is the biggest, Turbo 350s and Powerglides smaller. The Turbo 350 transmission was prevalent in nearly all GM, rear-wheel-drive cars and trucks through 1984. This version did not have a locking converter. The Muncie four-speed, like the T-10, is a side-loading transmission. K 170. . ~David PS ..I would think pictures of all 3 could help us if you could post some. I don't think we can identify the tranny from that. Some GM brand models even have different transmission pan shapes and transmission types for different years. 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. A mechanically robust transmission, it was used in other General Motors vehicles as well. 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. The Powerglide on the left is a cast-iron unit from a 1958-62 Chevrolet. If you find an M22, you have the ultimate Muncie designed for the high torque of a big-block that will bolt to your small-block. They are found primarily in GM and Chevrolet trucks, Blazers, Suburbans and many other models falling under the 1/4-ton to 1-1/2-ton platforms. The next numbers we need are the ones just below the Starter on the passenger side. The Turbo 400 has a very distinct fluid pan. FIRST TRANSMISSION. Off of the left side of trans: GM 3845122 H254 Thanks. Manual Trans Reference GM 3, 4, 5 and 6 speeds V24 How to identify chevrolet gmc manual transmissions Use the following information to compare physical description of your Chevrolet or GMC manual transmission in order to identify what model transmission is in your vehicle. The gear ratio of the Chevy four-speed transmission placed in any car was usually determined by the engine size and rearend axle ratio. For 1971-'74, a larger diameter, 32-spline mainshaft was employed along with the corresponding yoke. On 72-77 vehicles, the switch is located over the accelerator pedal. In 1962, aluminum units were only used with the 327 engine, but by 1963, all Powerglides had aluminum cases. The manual 3-speed transmission was standard fare for most of the Chevelle lineup from 1964 thru 1972. When it shifts from 1st to 2nd its got a really smooth shift and it puts a smile on your face. Lets take a brief look at the backstory and origins of each transmission, and how you can visually identify them as well as locate ID tags and identification numbers. On the THM700-R4 the VIN is either stamped onto a boss behind the bellhousing flange on the passenger side, just above the pan on the drivers side, or just behind the governor cover, stamped vertically where the case meets the tailshaft housing. Differentiating is easy, as the Muncie has seven bolts holding the side cover, and the Borg-Warner uses nine. It's worth the price of membership! 19. theYear=now.getYear() Pre-67 Example: C213N (C = Cleveland Powerglide, February 13, Night Shift) box FWIW. These days, the tag looks like P8E17 (Powerglide= type, 8= 1988, E= month, 17th= day). Sep 20, 2004 #4 CRAZYREDNECK77 Member Sep 20, 2004 67 Tailshaft housings will vary based on original application. (C: Chevrolet, D: 327, 68: 1968, 315953: sequential production number), Serial number stamped on the case, above the oil pan, driver side: The 465 is an intellegently designed . Input the VIN in a decoder and search. Muncies are the hot tip, since they usually were used with high performance engines. Images courtesy chevelles.com. Clean the area thoroughly and use a nice bright flashlight. The trailing letters denote what the engine was installed in. However, neither compares to the Muncie in terms of strength. Main case#3925656 Extension#3925658 Side cover#6261886 also has a date 11-13-78 or 11-13-70 hard to make out . The Muncie 4-speed transmission was used with many different GM models and engine combinations from 1963-1974. If you dont know where to check, the transmission usually stays around the area of the rear tires. All Prices are in USD. We have salvaged more than one Saginaw from cars like the Vega and Monza. numbers here that I can prove, so this is a short list. FORD (336) BORG-WARNER T-10, GM AS-3 (410) *MUNCIE Shaft Identification:. If you are installing your transmission that was purchased from Monster Transmission, our sales and support staff is here. //

Aaron Rand Bad Chad Illness, 7 Little Johnstons Allegations 2021, Avalon Yonkers Affordable Housing Lottery Application, What Did Joanna Moore Die From, The Man From The Future 3036, Articles G