Thread: What oil do I need to put in my rear end diff?
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Old 04-22-2011, 02:28 PM   #2
DieselDork
 
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Drives: 2010 RS/SS
Join Date: Mar 2011
Location: Nashville, TN Y'all
Posts: 46
I used Royal Purple 75w-90 in mine. Yes, 1QT filled it up.
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