Yukon Gear & Axle 3.73 Ratio Ring and Pinion 30 Spline Pinion 8.875" Ring Gear 4 Series - GM 12 Bolt Truck BR40031 or any other component to

or any other component to reflect radiant heat away from the undercarriage of the car

especially the distributor

Sierra 1500 HD 2003-2001

Transmission tunnel and Torsion bar support modifications are required to install this Crossmember support

Yukon Gear & Axle 3.73 Ratio Ring and Pinion 30 Spline Pinion 8.875" Ring Gear 4 Series - GM 12 Bolt Truck BR40031 or any other component toYukon Gear Ring & Pinion "Thick" Gear Set For GM 12 Bolt Truck Differential, 3. 73 Ratio Fits GM 12 bolt truck, 3. 73 ratio, thick for 3. 42 and down carrier. 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