The 4R70W transmission was originally released in 1993 as an updated version of the AODE with a wider gear ratio and was designed to improve gearset strength and fuel economy. The 4R70W was featured many popular Ford and Mercury applications such as the F-150, Expedition, Cougar, and Mustang. Its durability also makes it common to fleet vehicles like the Crown Victoria. Raybestos Powertrain offers a wide variety of OE replacement and enhanced material 4R70W friction clutch packs to increase performance and towing capacity. See more product details below.