2004 GMC Sonoma limited slip rear diff. oil

2004 GMC SONOMA
29,300 MILES • 6 CYL • 4WD • AUTOMATIC
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JAG306
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whats the best gear oil to use in this app. owners manual gives a part number that auto part stores can" translate---------- also can i add an additive ??
Aug 18, 2010 at 6:16 PM
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WRENCHTECH
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Yes, your going to have to add an additive because they really don't sell any gear oil specific for limited slip any more. The brand isn't important. Just go with the correct weight. Synthetic will be higher quality. Be sure to add the friction modifier additive.
Aug 18, 2010 at 6:24 PM
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JAG306
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thank you wrenchtech! already done
Aug 20, 2010 at 8:58 AM
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WRENCHTECH
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Your welcome
Aug 20, 2010 at 9:57 AM