A torque converter is like two fans immersed in oil. One fan has power to it, and is constantly turning. The other fan is hooked to the wheels. Automatic trans cars have them. Stick shift cars do not. (There were some oddball transmissions made by Chrysler in the early 1950s, and they may have combined torque converters with manually-shifted gears.) With a stick shift placed in first gear (for example), the speed of the engine and the speed of the driven wheels is "locked in," which means that when the clutch is fully engaged, the wheels must turn that speed or the engine will necessarily have to either (1) run too fast, (2) run the correct speed, (3) lug and vibrate, or (4) stall from overload. The manual clutch allows for no slippage between engine and driven wheels (except when it is partially engaged by the driver). Are we confused yet? Do I really know what I'm talking about? Not sure.