Upgrade your GM 10-bolt differential with the GM 8.5/8.6 Ring & Pinion 3.08 Ratio by MOTIVE GEAR. Designed for optimal performance, this kit features a 30 spline pinion for durability and precision. Experience smoother acceleration and improved...

Ring and Pinion - Performance - 3.42 Ratio - 30 Spline Pinion - 8.5 in - GM 10-Bolt - Kit

Ring and Pinion - Performance - 3.73 Ratio - 30 Spline Pinion - 8.5 in - GM 10-Bolt - Kit

Ring and Pinion - Performance - 4.10 Ratio - 30 Spline Pinion - 8.5 in - GM 10-Bolt - Kit

Ring and Pinion - Performance - 4.56 Ratio - 30 Spline Pinion - 8.5 in - GM 10-Bolt - Kit

Ring and Pinion - 3.42 Ratio - 30 Spline Pinion - 3 Series - 8.875 in - GM 12-Bolt - Kit