The 4R70W arrived at the scene with the following specs: Nevertheless, both transmissions are interchangeable. The 4R70W Transmission SpecsĪ modified version of the AODE was launched in 1993, but with a different name. But then, the 4R70W is also not a great place to end your search either. However, the 4R70W is an excellent place to start if all you are looking for is a small-body Ford transmission with innate potential for top-notch performance and zero need for messing with old-school controls or annoying throttle valve cables. The truth is there is no perfect stock transmission. ![]() Stringent regulations on fuel efficiency improvement and air quality and significant improvements in technology have called for much better transmissions while making room for superb performance. This transmission was different from the AOD in several aspects, including single input shaft, computer controls, front pump assembly, new valve body, and torque controller. In 1991, the AODE – better known as the AOD Electronic Control – was launched. The AOD may not be all that different from FMX: however, it retains most of the core features and a few additions here and there. It wasn’t all that different from the FMX 3-speed automatics since common FMX components – such as the Ravigneaux gear train, etc. The AOD efficiently replaced several older transmissions that Ford put out, including the C4, C5, and FMX. By 1980, Ford created the 4-speed automatic overdrive transmission (AOD).Īlthough the automatic overdrive transmission was relatively new, it still bore several features of old designs. However, fuel-efficient automobiles were environmentally and economically friendly and could cover more miles with far less fuel.Īnd by the time the price of oil rose about 400 percent, fuel-efficient vehicles had become crucial. And for this to happen successfully, the manufacturers had to sacrifice a handful of the speed and performance features that older models exhibited. Brief History of the Ford 4R70W TransmissionĬar manufacturers began to wise up in the ‘70s and started manufacturing fuel-efficient vehicles. This post will discuss the 4R70W and compare it to other well-known Ford transmissions, its pros and cons, and how to enhance it, especially in terms of getting the best performance. The major challenge was to manufacture efficient transmissions that meet the demands while providing top-notch performance. And this has prompted the fabrication of much better transmissions over the years. Chrysler and General Motors followed swiftly with their respective versions.Īnd since then, several regulations and rules to considerably improve the quality of air and fuel efficiency have been published. Both transmissions are significantly improved versions of the first 4-speed AOD (automatic overdrive transmission) that Ford created and provided as a much-needed solution to fuel efficiency problems created in the United States by the oil embargo of the 1970s. The 4R70W, a Ford transmission, is an evolution to the popular AODE and is often used interchangeably. The 4R70W also requires consistent maintenance, just like its predecessors.This way, you will have an incredibly powerful transmission.
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