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Q: Cost for repair of a front differential leak. on 2004 GMC Sierra 1500

How many hours and what would the cost be to fix a front differential leak in my truck. If I bought the hub assembley kit and the seal.
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You should not drive this truck until you fix the leak. The front diff doesn't hold much oil and it requires Synthetic lubricant, GM part no. 12378261, meeting GM specification 9986115.
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