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Concavity On Small Needle Bearing Seal Direction, Spindle

Discussion in 'Intermediate CJ-5/6/7/8' started by Allan, Apr 18, 2020.

  1. Apr 18, 2020
    Allan

    Allan 74 Renegade

    Olympia
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    Jan 21, 2019
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    There is a small approx 1 1/2 concave rubber seal with the spindle seal set, can anyone tell me what direction it goes I took mine apart and it was previously installed by PO with convex inbound, open toward the differential case, I can’t trust why po has previously done because the bronze washers were in backwards when I took it apart
     
  2. Apr 18, 2020
    givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    New Kent, VA
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    Assuming we're talking about the same part, my dana 30 was installed with the concave side facing outward, and seems to fit well that way. Screenshot_20200418-095244_Gallery.jpg

    Looks like ours were both installed the same way....
     
  3. Apr 18, 2020
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    The lip always points toward the side you want to seal. If there's no groove on the other side of the seal, I'd say the grooved side is the lip and it should go in.
     
  4. Apr 18, 2020
    Lockman

    Lockman OK.....Now I Get It . 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Silver Hill,...
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    I've done my hubs a couple times in the last year & had to ponder this also.
    My way of thinking , is that the concave would face outward to go along with the taper on the spindle. Make's sense, eh ?
    Anyway , that's what I have done , with no leaks.
    In other words.....the wider side on the inside of the rubber seal would face towards the differential. When you put the Hub over the spindle the narrower side on the inside of the rubber seal would face outwards.
     
    Last edited: Apr 18, 2020
  5. Apr 18, 2020
    Allan

    Allan 74 Renegade

    Olympia
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    Thank you all, as usual nice to get others experience
     
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