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Technical TH350 park rod installation technique?

Discussion in 'The Hokey Ass Message Board' started by SDS, Mar 8, 2023.

  1. SDS
    Joined: Apr 28, 2011
    Posts: 1,074

    SDS
    Member

    In changing the TH350 selector shaft seal, I inadvertently pulled the park rod out of it's socket and don't understand how to put it back in.
    Do I have to lift the paw and just stick it in there? If I do that, it seems floppy (compared to how it was before it fell out).
    Please help ~ thanks!
    It's really hard to get a photo up in there, but here's a try...

    PXL_20230216_170619723.jpg
    PXL_20230216_170549773.jpg PXL_20230215_212325961.jpg
    IMG_20230308_105116.jpg
     
  2. jaracer
    Joined: Oct 4, 2008
    Posts: 3,072

    jaracer
    ALLIANCE MEMBER

    If you move the selector to the park position, does it lock the drive shaft? If it does, you have it in right. If not, try again. Most of the time you can shove the tip in and the pawl will move enough for the rod to go in. If not, you need to use a long screw driver and move the pawl a bit towards the center of the transmission.
     
    loudbang likes this.
  3. SDS
    Joined: Apr 28, 2011
    Posts: 1,074

    SDS
    Member

    So, the end of the rod always stays under the pawl? ...the larger diameter on the tapered end pushes the pawl up more than it is when its on the small diameter section - is that how it works?
     
  4. jaracer
    Joined: Oct 4, 2008
    Posts: 3,072

    jaracer
    ALLIANCE MEMBER

    Yes, if the parking pawl isn't lined up with a gap in the gear, the spring on the rod compresses which will force the pawl into the gear when the driveline moves enough so that the pawl can move into the gear.
     
    loudbang likes this.
  5. Kevin Ardinger
    Joined: Aug 31, 2019
    Posts: 1,049

    Kevin Ardinger
    Member

    I know it’s too late but for future reference, they make a tool to pull that seal and install it without going through all that. Just have to pull the nut and lever off the outside.
     
    427 sleeper and Mark Yac like this.
  6. SDS
    Joined: Apr 28, 2011
    Posts: 1,074

    SDS
    Member

    Thanks... I'm aware that tool exists, but I like to pull the selector shaft out and make sure it doesn't have any grooves or burs on it. I had to remove the pan anyways to change the filter
     
    Kevin Ardinger likes this.

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