Quote:
Originally Posted by dmcmahan60
Changed the rear diff fluid aproximatley 4 times over the past 3 years. Two times with the AC Delco fluid and then the last 2 times with the Valavoline 75W90 with the correct friction modifiers in it. The first time I changed it there were substantial metal flakes on the drain plug.
So if I did something wrong it is on me and I am paying for it. Lesson learned and I know next time. Found out it also needs a drivers side axel. Just miss my car and want her back.
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The first fluid change always looks bad. The Valvoline fluid might be the mistake imo...AC Delco should be the only fluid used in these factory diffs. Otherwise, The Diffs are really strong with the welded ring gear which is why we can not change gears in them. Guys have been 8's with them. Axles and Driveshaft is normally all that's needed for track duty with hard launches.