Motive Gear F890537AX MOGF890537AX R&P 5.37 FORD 9 AX FACTORY LIGHTENED Fits select: 1966-1973 FORD MUSTANG, 1975-1986 FORD F150

Ring and Pinion - AX Series - Performance Ring And Pinion - AX Series - Performance Ring And Pinion - Ford 9 in. - 5.37 Ratio - 43-8 Teeth - Light Weight Racing Applications. Features: 8620 Material. Heat Treated. Demonstrating once again just how serious they are about providing the best products available, Motive Gear unveils their new Quality Assurance Lab & Design Center. With a substantial capital investment, over 1,200 square feet of space and five dedicated employees including two engineers and an industry leading design team - the lab is unparalleled in the automotive aftermarket. The lab boasts seven state of the art testing machines including a Gleason Sigma Gear Measuring Machine, a Mitutoyo USA Hardness Tester and a Mitutoyo USA Optical Comparator. In addition to taking Motive Gear to ISO Certification, the Quality Assurance Lab & Design Center will provide Motive Gear customers quality and consistency that is simply unavailable from any other aftermarket drivetrain company.