Strange 60 break in process??
Fill the rear, on jack stands, forward and reverse for so many minutes.
Let cool.
Drive for 20 minutes, varying speed, no hard launches, no highway, park, let cool completely.
Pull it to the line, burnout, launch.
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Just reading the replies in this post alone, no longer makes me question why so many people are having noise issues with their differentials.
Changing the lube isnt really a must... unless you over heat it during break in... but your right, it probably wouldnt hurt at all.
My car had over 1k on the rear and never saw a hard launch or the track, and still had noise, it had plently of heat cycles.
But since the rear is going into the new car and new gears are going to be swapped in, id like to see how it will be effected. They will be Moser Pro Street gears, 4.11's



