Super Silverado Posted December 6, 2009 Report Share Posted December 6, 2009 I need to change the oil in my front diff, what brand/weight do I need? Not having any problems or noise with it, but I don't think the fluid has been changed at all, so now is a good a time as any. Its an '03. :( Praying I don't have a bunch of metal shavings come out.......... Quote Link to comment Share on other sites More sharing options...
Fireman31 Posted December 7, 2009 Report Share Posted December 7, 2009 75W-90 GL5 rated synthetic gear lube Quote Link to comment Share on other sites More sharing options...
kevinthegreat Posted December 7, 2009 Report Share Posted December 7, 2009 i used royal purple 75W-90 Quote Link to comment Share on other sites More sharing options...
Super Silverado Posted December 21, 2009 Author Report Share Posted December 21, 2009 (edited) Is gear oil all the same or is it different for front and rear? Edited December 21, 2009 by Super Silverado (see edit history) Quote Link to comment Share on other sites More sharing options...
lilmarv1117 Posted December 21, 2009 Report Share Posted December 21, 2009 here is a link to all the popular "how to" including front and rear differential fluid changes. This should answer all, in not most of your questions. http://www.silveradoss.com/forums/index.php?showtopic=45198 Quote Link to comment Share on other sites More sharing options...
T-Bag Posted December 21, 2009 Report Share Posted December 21, 2009 (edited) 75W-90 GL5 rated synthetic gear lube for the front diff, brand is up to you, Valvoline, Castrol, GL5 is GL5 basicly i used royal purple 75W-90 use that in my rear diff Is gear oil all the same or is it different for front and rear? yes Edited December 21, 2009 by Bad aSS Silvy (see edit history) Quote Link to comment Share on other sites More sharing options...
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