Yukon Gear & Axle Ring & Pinion Gear Set - GM 8.5" & 8.6" - 4.11 Ratio PD100K This system is easy to

This system is easy to install and tune and produces incredible amounts of traction impossible to get with any factory suspension system

200 in Compressed

Bert Drive Flange

BBC Timing Cover

270" Gasket Bore

Yukon Gear & Axle Ring & Pinion Gear Set - GM 8.5" & 8.6" - 4.11 Ratio PD100K This system is easy toYukon Gear Ring & Pinion Gear Set For GM 8. 5" & 8. 6" Differential, 4. 11 Ratio Fits GM 8. 5'', 4. 11 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