Aeroflow Ford 9" Street Diff Gear - 4.11:1 Ratio Suit Ford 9" 28 Spline Pinion

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Aeroflow street performance ring and pinion Ford 9" differential gears are strong but quiet performers. Manufactured from 8620 grade steel to handle some of the harshest conditions . Designed with a gear tooth surface finish which reduces both friction & heat for long races & high torque conditions. We use high grade steel in both the ring & pinion gears, with fitment designed to OEM specs. We offer these in a 28-spline pinion and various gear ratios to suit a variety of applications. Show more