Motive Gear Performance Ring and Pinion - 3.90 Ratio - 30 Spline Pinion - 8.875 in - GM 12-Bolt M59XX1 Each tube is mirror polished

Each tube is mirror polished

11/16 in Press-On

Increases Gas Mileage

the MAC Air produces more pressure and more volume than any other helmet pumper available

Motive Gear Performance Ring and Pinion - 3.90 Ratio - 30 Spline Pinion - 8.875 in - GM 12-Bolt M59XX1 Each tube is mirror polishedMotive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both on and off road, check out Motive Gear. Motive Gear products can be found in the winners circle at racing events worldwide. The superior quality of Motive Gear components is the result of years of