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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2004 GMC Sierra 1500 Question: Cost for repair of a front differential leak.
Replychuckyp1, March 18, 2012, 14:39Rookie
The passenger side seal of the front differential
Answer #2PARTS GUY March 18, 2012, 21:48Master
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.