With the flexplate installed Tim can get busy actually installing the transmission. He adds a quart of transmission fluid to the torque converter, then installs the converter onto the transmission's hardened input shaft. The torque converter, much like a clutch, connects to the flexplate, and spins with the engine. The torque converter decides the amount of stall and slippage based on specs given to the converter manufacturer by the owner. In this case, Performance Automatic dialed in the converter via dyno information and the car's weight, which for Coyote Stock is 3,200 with driver.