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knuckle seal replacement

Discussion in 'Flat Fender Tech' started by NoFlyZone, Dec 3, 2006.

  1. Dec 3, 2006
    NoFlyZone

    NoFlyZone Member

    Ridgeville, SC
    Joined:
    Mar 17, 2006
    Messages:
    578
    There are tons of topics in here about knuckle seals and knuckle pudding but I can't find a "how to replace"

    Do I have to take the knuckle apart to replace the seals? If so I think I may just rebuild this D30 I have.
     
    NoFlyZone, Dec 3, 2006
    #1
  2. Dec 3, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    FSM has detailed instructions, that's prolly why you don't find it here. ;)

    Just take the old seal off and put the new one on.
     
    sparky, Dec 3, 2006
    #2
  3. Dec 3, 2006
    NoFlyZone

    NoFlyZone Member

    Ridgeville, SC
    Joined:
    Mar 17, 2006
    Messages:
    578
    I know I do I'm just looking for a shortcut as I already have the seals and I am not quite ready to do the axle swap yet.
     
    NoFlyZone, Dec 3, 2006
    #3
  4. Dec 3, 2006
    cj-john

    cj-john Member

    Galveston, IN.
    Joined:
    Aug 9, 2006
    Messages:
    242
    IIRC the seals and retainers are split. Just take out the bolts and peel it out. It's been 35 years since I did one but used to do these as a kid for my Dad.
     
    cj-john, Dec 3, 2006
    #4
  5. Dec 3, 2006
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    If the seals aren't split as they come, you'll have to cut them. Just feel around the diameter of each one and you'll find the place where the embedded steel ring has a split, and this is where you need to cut the rubber part with a razor blade. Install this split in the 12 O'Clock position and you should be good. Oh, and don't forget to put some 90wt or a thin coat of axle grease on the sealing surface where the seal meets the ball, so that the new seal doesn't tear before the knuckle pudding has a chance to lube it. ;)
     
    w3srl, Dec 3, 2006
    #5
  6. Dec 3, 2006
    russo

    russo Hope is not a method

    Norris, Tennessee
    Joined:
    Oct 28, 2005
    Messages:
    498
    Just finished changing seals and king pin bearings. The new seals have a white ring on the back side with a gap where the steel has a gap. Makes splitting it very easy.
     
    russo, Dec 3, 2006
    #6
  7. Dec 4, 2006
    NoFlyZone

    NoFlyZone Member

    Ridgeville, SC
    Joined:
    Mar 17, 2006
    Messages:
    578
    Ahhh, relief. Did find a cool little plate that says "BENDIX JOINT" I did find some discussion on that.
     
    NoFlyZone, Dec 4, 2006
    #7
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