The first automotive application in the lock-up basic principle was Packard's Ultramatic transmission, released in 1949, which locked up the converter at cruising speeds, unlocking when the throttle was floored for brief acceleration or given that the motor vehicle slowed. Slippage consumes power through the coupling period. Locking the converter https://torque-converter-clutch75296.tkzblog.com/33776507/the-definitive-guide-to-torque-converter-clutch