Torqueflite A413, A670 & A470

Fig. 1 Cross-sectional view of transaxle:

These transaxles combine a torque converter, automatic 3 speed transmission, final drive gearing and differential combined into one unit. The torque converter, transaxle and differential assemblies are housed in an integral aluminum die cast housing, Fig. 1.
The differential oil sump is integral with the transaxle sump, and separate filling of the differential is not necessary.
The torque converter is connected to the crankshaft through a flexible driveplate. Converter cooling is accomplished by an oil-to-water type cooler, located in the radiator side tank. The torque converter cannot be disassembled. The transaxle consists of two multiple disc clutches, an overrunning clutch, two servos, an hydraulic accumulator, two bands and two planetary gear assemblies to provide three forward and one reverse gear. The sun gear is connected to the front clutch retainer. The hydraulic system consists of an oil pump, and a single valve body which contains all of the valves except the governor valves. Output torque from the main drive gears is transferred through helical gears to the transfer shaft. An integral ring gear on the transfer shaft drives the differential ring gear.