What weight gear oil for LSD equipped rear diffs?




Stock I believe is 75w85. I've had a few different answers as to what's ok to run but am curious as to what the masses are using. I'm either using AMSOIL or Redline. I've been weighing 75w140. Is that correct or am I looking at the wrong weight?
Stock I believe is 75w85. I've had a few different answers as to what's ok to run but am curious as to what the masses are using. I'm either using AMSOIL or Redline. I've been weighing 75w140. Is that correct or am I looking at the wrong weight?

E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
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