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Rear Dif Vent '74 Cj5

Discussion in 'Intermediate CJ-5/6/7/8' started by Dave M, May 10, 2022.

  1. May 10, 2022
    Dave M

    Dave M New Member

    Keuka Park NY USA
    Joined:
    Feb 17, 2022
    Messages:
    34
    Is the vent for the rear end (Dana 44) that is on the tube sufficient or should I drill and tap (1/8") the pumpkin? I want to extend the vent higher with hose. Not planning any underwater travel but thought while it's on the bench why not, just for backing into a boat ramp type stuff. Thanks, Dave
     
    Dave M, May 10, 2022
    #1
  2. May 10, 2022
    Jw60

    Jw60 Cool school 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,793
    I plugged the tube and drilled the cover on my '60. I'll run some hose up to a filter someday.
     
    Jw60, May 10, 2022
    #2
  3. May 11, 2022
    jeepdaddy2000

    jeepdaddy2000 Active Member

    Eagle Point oregon
    Joined:
    Jun 24, 2004
    Messages:
    1,144
    Using the stock vent is fine. All it does is relieve any pressure that builds up in the diff due to heat expansion/contraction.
     
    jeepdaddy2000, May 11, 2022
    #3
  4. May 12, 2022
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Make sure you put a shield on the inside of the cover to deflect the gear oil from the vent tube. Otherwise it has a tendency to be pumped up the vent tube by the pump action of the ring gear teeth. Been there done that.
     
    nickmil, May 12, 2022
    #4
    Ol Fogie and Jw60 like this.
  5. May 12, 2022
    Dave M

    Dave M New Member

    Keuka Park NY USA
    Joined:
    Feb 17, 2022
    Messages:
    34
    Got it. Thanks
     
    Dave M, May 12, 2022
    #5
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