Richmond 3.73 Ratio Ring and Pinion 30 Spline Pinion 8.875" Ring Gear 4 Series - GM 12 Bolt 600090150 4 AN White Face

4 AN White Face

1990-1991 Lexus ES250

1999-2010 Ford F-450 Super Duty

2013-2016 Lincoln MKZ

Note: If the Coil Pack is being installed on a '99-'04 Ford Focus Zetec

Richmond 3.73 Ratio Ring and Pinion 30 Spline Pinion 8.875" Ring Gear 4 Series - GM 12 Bolt 600090150 4 AN White FaceProduct Description: Ring and Pinion 3. 73 Ratio 30 Spline Pinion 4 Series 8. 875 in GM 12 Bolt Richmond Gear is famed for their tough and reliable ring and pinion sets. That same level of reliability and precision is available in their other driveline products, including differentials, racing Transmissions, driveshaft components, and more. Racecars around the world rely on Richmond premium gearsets and Transmissions; your hotrod will run better than