Yukon Gear & Axle High Performance Ring and Pinion - 4.56 Ratio - 30 Spline Pinion - 8.5"/8.6" - GM 10-Bolt BR40065 Top-Mount Easy-Install Design

Top-Mount Easy-Install Design

The Lightning 45 is the first nitrous specific valve ever produced in light weight aluminum

Power - Fuel Economy And Towing Tunes

Built-in GPS with speed

Yukon Gear & Axle High Performance Ring and Pinion - 4.56 Ratio - 30 Spline Pinion - 8.5"/8.6" - GM 10-Bolt BR40065 Top-Mount Easy-Install DesignYukon Gear Ring & Pinion Gear Set For GM 8. 5" & 8. 6" Differential, 4. 56 Ratio Fits GM 8. 5'', 4. 56 ratio. Yukon uses the latest designs and manufacturing technologies to provide a quiet running gear that is strong and easy to set up Yukon Ring and Pinion sets give you the confidence of knowing you're running gears designed for the harshest of conditions. Whether it's on the street, off road, or at the track; Yukon Ring and Pinion sets deliver