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Rear diff? Stop it!!!

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by janikphoto, Jun 9, 2012.

  1. janikphoto

    janikphoto Rockstar 3 Years 100 Posts

    Ever since I had the rear diff drained, cleaned up and had a new gasket put on, the cover bolts keep backing out. I'll discover a drip/leak down there every month or so. It was tight as a drum before. What do I need to do, so these bolts stay put?
    :grrrrrr:
  2. the phantom

    the phantom Active Member 2 Years ROTM Winner Gold Member 1000 Posts

    Loctite but I dont remember wich color for that application.
  3. SurrealOne

    SurrealOne Former Member ROTM Winner 1000 Posts

    Blue loctite is appropriate for most vehicular applications. I would NOT use red loctite, as heat -must- be applied to remove it and the melting temp of the substance is 200F if what I've read regarding it is accurate.

    Surreal
  4. Dana W

    Dana W Member 2 Years 100 Posts

    You don't mention the year, but some diffs require a paste/liquid/caulk/glue type of gasket sealant around the cover.
  5. bazar01

    bazar01 Member 2 Years 100 Posts

    I used Hylomar non-hardening gasket maker on mine, and it is still dry.
  6. janikphoto

    janikphoto Rockstar 3 Years 100 Posts

    I keep forgetting this forum doesn't show our vehicles in our profile like many other car forums do. I have a 1999 K1500 suburban.
  7. Pikey

    Pikey Moderator Staff Member 2 Years ROTM Winner 1000 Posts

    Like [MENTION=50075]SurrealOne[/MENTION] said, Blue loctite. But, you have to make sure that you clean every hole out with brake parts cleaner and dry them with compressed air. You must also clean the bolts. If there is oil or dirt on the bolts or in the holes the loctite will be pointless.
  8. Dana W

    Dana W Member 2 Years 100 Posts

    Hey, that's what I have, a 99 Burb K1500. It sounds like the blue locktite is your cure though. Can't live without the stuff. Pikey is right. I left some studs and holes oily and dirty once and used locktite in 'em. The stuff might as well had been designed as a bolt ejector.

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