3/12/2024 0 Comments History of the 700r4 transmissionIdentify the 700-R4 by locating the TV cable used to control line pressure and shift points. The first number on identification tag is the year the model was made, followed by the model of the unit, and plant of manufacture. One distinctive feature is the identification tag on the rear passenger side of the unit. The main cast is made of cast aluminum alloy with three main castings. The identification of a 700-R4 is easily identifiable due to special features. The 700-R4 was one of the best automatic transmission designs in its class and paved the way for more innovative designs as technology evolved. Replacement parts for the 700-R4 were easily accessible in addition to perks like the impressive improvement to fuel economy and cooler operating temperatures. Fuel consumption decreased by as much as 30% on the highway. There was a growing demand for more fuel efficiency and less emissions, and the 700-R4 met the challenge. ![]() The transmission was met with praise in the automotive markets. The General Motors (GM) 700r4 transmission, also referred to as the “Turbo Hydra-Matic”, surfaced in 1982 to replace the retired, less durable, 3 speed TH350.
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