Richmond 4.57 Ratio Ring and Pinion 10 Spline Pinion 8.750" Ring Gear 742 Case - Mopar 8.75" 421993 Features:Designed for racing applications with

Features:Designed for racing applications with an MSD 7 or 8 Series Ignition ControlU-Core winding design produces more voltage and current70:1 turns ratio and lower primary resistant compound for vibration resistanceTough

Additional 3-quart Fluid Capacity

6-Piston Calipers

They come with heavy duty 3/4in

2010-2019 Dodge Ram 2500/3500 (Excludes Dual Exhaust & EcoDiesel Models)

Richmond 4.57 Ratio Ring and Pinion 10 Spline Pinion 8.750" Ring Gear 742 Case - Mopar 8.75" 421993 Features:Designed for racing applications withMotive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off road, check out Motive Gear. Motive Gear products can be found in the winners circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of