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Hot Rods T350 drainback valve

Discussion in 'The Hokey Ass Message Board' started by 36roadster, Jun 13, 2019.

  1. I went to move off after the car was not used for a couple of weeks, & couldn't select a gear. After finding the trans fluid on the floor, I put in about 1&1/2 pints, and all was good. I keep reading about the elusive drainback valve, and how if it is faulty the torque converter will lose it's fluid when parked up for a couple of weeks. Where exactly is this mythical beast, and can it be replaced without dropping the trans?
  2. sdluck
    Joined: Sep 19, 2006
    Posts: 2,808


    My understanding the drain back valve was usually removed from Turbo 350 trans to keep from blowing the front pump seal out I believe it was in the input shaft but usually there's a leak somewhere trans dipstick tube or something else leaking when it fills to pan up at leaks out of wherever it can

    Sent from my SM-J737T using The H.A.M.B. mobile app
    loudbang likes this.

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