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Differential Cover Rot

Discussion in 'Chevy Trucks' started by joshg, Aug 3, 2012.

  1. joshg

    joshg Senior Member
    from VT
    Messages: 141

    My rear differential just started to leak. It is "wet" on the rear face/cover about halfway up and then seems to pool at the bottom before dripping off. There is pretty significant corrosion, some material flacking off. I am thinking the gasket is fine but the cover is actually starting to have pin holes. Have other seen this? Expensive fix?

    Thanks for input.

    2000 NBS Silverado 2500 6L 4x4 ~135K mi
  2. Holland

    Holland Senior Member
    Messages: 605

    Common, easy, cheap
  3. blazer_kid

    blazer_kid Member
    Messages: 56

    I second that cheap and easy fix. Just make sure to clean gasket surface up good before putting the new cover and gasket on and you should be fine. Also read in your owners manual to make sure to put the right diff fluid in.
  4. brad96z28

    brad96z28 PlowSite.com Addict
    Messages: 1,526

    Cheap easy and common. I get them from the gm dealer they come as a kit with the cover gasket and all new bolts. Just make sure to paint or at least prime the new cover.
  5. jmac5058

    jmac5058 Senior Member
    Messages: 427

    The gaskets are not the only trouble that happens the metal in the cover rots out ( like powerstroke oil pans) and even that is a cheap easy fix.
  6. MickiRig1

    MickiRig1 PlowSite Veteran
    Messages: 3,617

    Summitracing.com has diff covers. Some are even chrome. They run about $50 or so. Just the cover and gasket.
  7. brad96z28

    brad96z28 PlowSite.com Addict
    Messages: 1,526

    I think its less then that from the dealer with new bolts and gasket.