What gear oil is used in the rear end? Does it have to be synthetic?

Asked by Mar 30, 2007 at 09:12 PM about the 1999 Chevrolet Silverado 1500 3 Dr LS 4WD Extended Cab SB

Question type: Maintenance & Repair

2 Answers

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Hello mcgyver1467-- The gear oil that would fit either of the differentials available on the 1999 Chevrolet Silverado is indeed synthetic, with a weight of 75w90. For information about non-synthetic oils, I would need more information about your truck. Good luck from Bovan.

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What gear oil in the rear end do you use in 2001 Chevrolet Silverado 4.8 L

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