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Transfer Output Shaft Pre-Load

Discussion in '40- & 55-Series Tech' started by rgentry, Dec 23, 2003.

  1. rgentry

    rgentry

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    I am trying to set the preload on the output shaft bearings
    on my 3-speed transfer case. The Toyota Factory Manual
    says that the preload should be between 10 and 13 pounds
    and the Haynes manual say between 2.6 and 9.0 pounds for
    "new bearings".
     
  2. Pin_Head

    Pin_Head

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    The factory spec for the J30 case is 2.6 to 9.9 pounds of pull with a cord wrapped around the parking brake drum. This is not foot pounds because the radius of the drum is considerably less than 1 foot. Used bearings should be more than 1 pound, but presumably less than 9.9.
     
  3. rgentry

    rgentry

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    Thanks PH. Perhaps part of the confusion comes from the
    fact that the factory service manual shows the fish scale
    pulling on one of the parking brake studs (less lever arm)
    and not on a string wrapped around the drum. My factory
    manual is very old, was printed in Japan, and is full of
    what we used to call Japlish.

    BTW, did you ever see the photo of the dog teeth
    wear that I posted?


    https://forum.ih8mud.com/index.php?board=1;action=display;threadid=8909