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Projects Help needed on 1948 Cadillac Hydramatic Trans

Discussion in 'Traditional Hot Rods' started by Lobucrod, Apr 16, 2018 at 12:08 PM.

  1. Lobucrod
    Joined: Mar 22, 2006
    Posts: 4,077

    Lobucrod
    Alliance Vendor

    I am needing to reseal a hydramatic trans in a 1948 Cadillac. I have the front and rear torus removed but can not get the rear tortus shell out to change the seal. I have the snap ring and thrust washers removed and the shell will move on the shaft just a little bit butt wont come all the way out. Is there something inside the trans holding it on that requires removal of the pan or side cover?
     
  2. Deuces
    Joined: Nov 3, 2009
    Posts: 13,271

    Deuces
    Member
    from Michigan

    Speedo cable drive gear?????
    Taking a wild guess here...
     
  3. justpassinthru
    Joined: Jul 23, 2010
    Posts: 190

    justpassinthru
    Member

    There isn't anything else holding the shell to the trans at the point you are.
    Most likely the sealant ring has worn a groove in the ID of the hub that's preventing you from removing the shell.
    You may have to give the shell a really hard jerk to get it to come off.
    By the time you get the shell removed you may break the sealant ring.

    Bill
     
  4. Lobucrod
    Joined: Mar 22, 2006
    Posts: 4,077

    Lobucrod
    Alliance Vendor

    Sounds like good info Bill. Makes perfect sense. Guess I better have a sealant ring available before getting any rougher with it.

     
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  5. Scott De Shields
    Joined: Mar 23, 2011
    Posts: 128

    Scott De Shields
    Member

    If there is a groove in the ID of the hub of the shell can it be repaired or does it need to be replaced?
     
  6. justpassinthru
    Joined: Jul 23, 2010
    Posts: 190

    justpassinthru
    Member

    The torque converter company I use in Chicago, Dynamic Manufacturing has replaced hubs for me in the past.
    They have now been bought out and I don't know if there are any old timers there anymore.

    I would check around to torque converter remanufactures in your area.

    If they are not willing to replace the hub then the only option is to replace the shell with a good used one.

    Some minor ring groove wear is acceptable. Sand it smoother so the ring wont grab the sharp edge when reinstalling.

    Bill
     
  7. Scott De Shields
    Joined: Mar 23, 2011
    Posts: 128

    Scott De Shields
    Member

    When I was rebuilding my hydramatic the grove was too deep so I was lucky enough to find a good used one.
     
  8. Lobucrod
    Joined: Mar 22, 2006
    Posts: 4,077

    Lobucrod
    Alliance Vendor

    Put the tranny back in the caddy today. Chose not to replace the front seal since I couldn’t get the Torus shell out. Al is wel so far with no leaks.
     

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