The primary automotive software from the lock-up theory was Packard's Ultramatic transmission, released in 1949, which locked up the converter at cruising speeds, unlocking in the event the throttle was floored for brief acceleration or as being the car or truck slowed. M (optimum performance position): On this position the https://torqueconverterclutch10739.bleepblogs.com/34445199/new-step-by-step-map-for-torque-converter-clutch