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In my experience, Mobil 1 that says "for LSD units" will chatter. My testing showed that Redline GL5 with LSD additive did not.


Did the rear diff today with the Redline 75w90 GL-5. No chatter/shudder. Will do the front and transfer case as well with proper Redline.

Thanks for the help.


92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles