Eaton Detroit TrueTrac LSD Differential For 99-13 GM Truck 10-Bolt Axle (8.625")

Eaton Detroit Truetrac Limited Slip Differential for 30-Spline GM 8.5/8.6 in 10 bolt rear axle - Part Number 913A481     Arguably the most popular LSD upgrade for the 99-13 GM Truck 1500 platform using the 10 bolt rear end (8.625" ring gear).  The OEM G80 differential in the 99-13 Silverado/Sierra and fullsize SUV applications is notoriously weak and often one of the weakest links in the drivetrain once you begin increasing performance.  The TrueTrac differential uses helical cut gears and offers considerably more strength than the OE design.   From Eaton: "Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications."   Import Notes: Eaton differentials