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

mcgyver1467
0

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

1 Answer

bovan
13,580

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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