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99 silverado rear main seal

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by ronsantis, Oct 20, 2011.

  1. ronsantis

    ronsantis New Member

    what should it cost to have the rear main seal replaced?
  2. billnorman

    billnorman Member

    I don't know but it probably depends a lot on what kind of transmission you have. Rear main seal leaks can be caused by old age, overheating and dirty oil.
  3. chaser48

    chaser48 New Member

    My 99 also need replacing i change oil every three mnts

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