9" AX Production Lightened Ring and Pinion This set is the most innovative incarnation of the Ford 9" Gear Set to ever be designed and built. The Motive Gear Performance AX Ring & Pinion is on Average 1.8 to 2 pounds lighter than a standard Ford 9". This is due to the cut away on the underside of the ring gear. The big news doesn't end there! The Motive Gear Performance AX Ring & Pinion boasts an exclusive on these new low ratios: 7.33, 7.16, 7.00, 6.83,and 6.66. Note. You need a Daytona Style Pinion Support for installation of the Motive Gear Performance AX Series Gear Set.