![]() ![]() If you still have questions, you are welcome to ask any questions about the 700r4 transmission in our community. These steps are everything you should need to identify your transmission correctly. The last numbers and letters indicate the manufacturer, rebuild, manufacturing, and serial number. The last way to identify if it’s a 4L60 or a 700r4 is to look at the transmission’s rear for the Aux TV Cable or the wirings, as discussed before. If you find three letters, the transmission was made between 1986-1993.If you find two letters, the transmission was made between 1982-1985.These numbers tell us the application, engine size, wiring type, and solenoids. The next 2 or 3 letters identify the model of the transmission.RELATED: 4L60E vs 4L80E Differences: Swap & Information K-Case Differences The transmission is pretty reliable and can handle torque up to around 350nm~ remember that these are only the reported numbers, and it can be higher or lower depending on the age and maintenance. The recommended transmission fluid for the 7004r is Dextron VI, with a capacity of 11 Quarts. The transmission case has 16 bolts and a transfer case of aluminum. It had a case length of 23.5″~ and a weight of 170 lbs~ without fluid inside it. The transmission was made between 1982–1992. In conclusion, the 700r4 transmission is a 4-geared hydraulic automatic transmission with the 4th gear, an overdrive gear (30% increase). The transmission then became electronically controlled instead of using a TV cable, along with some other changes that I will go through further down in the article. In 1991, the 700r4 transmission was replaced by the popular 4L60 transmission. The 700r4 transmission is not electronically controlled it uses hydraulic pressure with a TV cable, which acts as a throttle position sensor to control the gear shifting. Due to its popularity, it is also quite effortless to find replacement parts for this transmission. If we mentioned all car models this transmission was installed in, the list would be very long.Ī lot of people like the 700r4 because of its excellent durability. You usually find the 700r4 transmission in GM cars like the Chevy Blazer, Suburban, Camaro, Corvette, Impala, and even in Oldsmobile Cars and many more. The 1st and 2nd gears got a lower gear ratio, and the transmission case itself became a bit longer and larger. It is based on the TH350 3-speed automatic transmission, and features an overdrive fourth gear that provides a 30 percent fuel economy improvement over the TH350. The 700R4 transmission is a 4-speed automatic transmission that was introduced by General Motors in 1982. Each model has a higher horsepower and torque rating.GM Cars - GMC, Chevy/Chevrolet, Buick 1982-1990īlazer, Suburban, Camaro, Corvette, Impala, Oldsmobile 350 and more There are several versions of the 700R4 transmission, including heavy-duty, super-duty, and Xtreme SS models. In 1993, the transmission’s hydraulic shifting system was replaced with electronic controls for the 4L60E version. In 1990, General Motors changed the name of the 700R4 to 4L60, which represented 4-speed, longitudinal, 6,000-pound gross vehicle weight rating. Overheating can also cause a warped valve body, which can be problematic when changing gears. Slipping between 3rd-and 4th gears can occur when overheating weakens the metal of the clutch-pack disks, causing a problem with the clutch-pack that engages those gears. Overheating is another common issue, though it can be avoided by installing an auxiliary transmission cooler. The transmission has several common problems, including a broken 27-spline input shaft in early versions of the 700R4 (after 1987, 30-spline shafts were developed to improve the reliability of the gearbox). It also became a popular upgrade for older rear-wheel-drive General Motors vehicles. The 700R4 was GM's overdrive four-speed replacement for the three-speed Turbo350. The transmission was designed for trucks and large cars but is compatible with a variety of Chevrolet, GMC, Cadillac, Pontiac, Buick, and Holden vehicles between 19. It is a four-speed automatic transmission with overdrive and was introduced as a way to make V8-powered cars and trucks more efficient. The General Motors 700R4 transmission was manufactured by Chevrolet in 1981 to run with 1982 model year vehicles. ![]()
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