The 5R55E transmission is a 5-speed electronically controlled transmission with 550 lb-ft of torque. The 5R55E transmission is known as the first 5-speed transmission for standard passenger road vehicles. The 5R55E was found in Ford Rangers, Explorers, and the Aerostar and could two-wheel and four-wheel drive trucks. See the full Raybestos Powertrain 5R55E transmission parts listing below.