Differential Fluid Question?

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08-03-2005, 12:16 AM

#11

03HoustonSierra

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He did swap the gears also

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08-03-2005, 12:45 AM

#12

James B.

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Use only non-synthetic 80-90wt in an Eaton Posi with 4oz. friction modifier. They recommend the GM stuff. Do not use synthetic fluid in an Eaton Posi.

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08-03-2005, 06:00 AM

#13

one03sierra

Formerly one92rs

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i used synthetic royal purple in my diff with an eaton for over a year with no problems at all.

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