Fluid clutches. Torque converter service. Planetary gear controls. Simple planetary gears and Simpson gear trains. Ravigneaux gear trains. Automatic transmission fluids, seals, filters, cooling bushings and thrust washers. Basic hydraulics and pumps. Hydraulics controls and valves. Oil control circuits. Road and pressure testing. Reconditioning a transaxle. Electronic control of transaxles and transmissions. Import transmissions. Up-to-date domestic.