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700r4 Troubleshooting Guide 400RĮven if the 700r4 transmission is durable and reliable, they sometimes fail. If you still have questions about it, 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.
700R4 CORVETTE SERVO DO SERIAL
The last numbers and letters indicate the manufacturer, rebuild, manufacturing, and serial number.
700R4 CORVETTE SERVO DO TV
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 3 letters, the transmission was made between 1986-1993.If you find 2 letters, the transmission was made between 1982-1985.
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These numbers tell us the application, engine size, wiring type, and solenoids. The next 2 or 3 letters identify the model of the transmission.However, there are some ways to determine if you have a 200-4r, 700r4, TH350, or a 4L60 transmission. Most GM automatic transmission looks almost identical and is challenging to identify for an untrained eye. Therefore, the K-case is more robust and has a thicker transfer case. The K-case 700r4 transmission was designed to work with heavy duty 4×4 trucks, and it is known as one of the best offroad transmissions. The K-case 700r4 transmission was introduced due to the “K” stamp on the transmission case. 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 the TV cable, with some other changes that I will go through further down in the article. In 1991~ the 700r4 transmission was replaced by the popular transmission 4L60. The 700r4 transmission was not electronically controlled yet it was hydraulic pressure controlled with a TV cable, which acted 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 gear got a lower gear ratio, and the transmission case itself became a bit longer and larger.
700R4 CORVETTE SERVO DO UPGRADE
The 700r4 was an upgrade with an additional gear (Overdrive). The TH350 was a three geared transmission without the last overdrive gear. The 700r4 and the 200-R4 transmission replaced the TH350 transmission that year. So what is a 700r4 transmission? The 700r4 Transmission was introduced the year 1982.