The 1st automotive application of your lock-up 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 because the car or truck slowed. At the conventional angle of assault, the stator caused the converter https://torqueconverterclutch18539.angelinsblog.com/33139876/torque-converter-clutch-options