Auburn Gear 542022 High Performance Series Limited Slip Differential Gm 8 1/2 30 Teeth, 10 Bolt, 2.73 & Up Ratios Auburn Gear's Flagship limited-slip differential gives you smooth torque-sensing operation with the correct bias ratios to outperform the competition. Provides maximum amount of torque transfer without compromising the performance requirements of a vehicle in situations where torque transfer is not required. Product may vary from the Image shown due to your vehicles application.