Together with the a few-passage torque converter, two passages are useful for transmission oil (ATF) flow with the torque converter and for clutch cooling, even though the 3rd passage is applied independently to regulate the lock and unlock in the clutch. The pump section on the torque converter is attached https://torque-converter-clutch20740.life3dblog.com/33173569/a-secret-weapon-for-torque-converter-clutch