Rear End Fluid-All Synthetic=No LSD Add?
04-19-2011, 04:29 PM
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Rear End Fluid-All Synthetic=No LSD Add? Last year I bought all of the recommended fluids from GM to be replaced on my WS6. I remember that some of the LSD's require a special additive that GM offers to be thrown into the mix.
However, the parts guy told me that if I go for their fully synthetic rear end gear oil, there is no need for the additive. Is this true or should I play it safe and still throw it in there?
However, the parts guy told me that if I go for their fully synthetic rear end gear oil, there is no need for the additive. Is this true or should I play it safe and still throw it in there?
