Yukon Gear & Axle 3.73 Ratio Ring and Pinion 30 Spline Pinion 8.875" Ring Gear 4 Series - GM 12 Bolt Bellhousing Bolt Kit Reliable seal/piston design

Reliable seal/piston design

630 in Round Port

It's completely reversible and couldn't be easier

GM A / F / G-Body

Raised runners

Yukon Gear & Axle 3.73 Ratio Ring and Pinion 30 Spline Pinion 8.875" Ring Gear 4 Series - GM 12 Bolt Bellhousing Bolt Kit Reliable seal/piston designYukon Gear Ring & Pinion Gear Set For GM 12 Bolt Truck Differential, 3. 73 Ratio Fits GM 12 bolt truck, 3. 73 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