Join Date: Apr 2010
Location: Phoenix, AZ
Thanked 612 Times in 572 Posts
It is a torsen style LSD. Has a 2:1 torque bias ratio. No friction modifier is required and works better if none added (some have had noise issues requiring friction modifier).
Btw: It's actually a 12.5"
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Leonard Pennock AD7AS
2006 Ram 3500 4x4 6sp, F&R TrueTrac, EFI Live, GT3782R, Dual Disc
2018 Ram 3500DRW 4x4, Stock for now