Cover Bolt Quantity: Dropout. Ring & Pinion Gear Ratio: 4.86. Pinion Gear Tooth Quantity: 7. Differential Case Design Type: Ford 9. Pinion Spline... 8620 Heat-Treated Material 28 Spline Pinion Street/Strip Applications Richmond 59-0006-L Ring and Pinion, Lightweight, 4.12 Ratio, 10 Spline Pinion, Steel, 12-Bolt Ford 9 Currie Set Pkg W | Ford 9. 8. Fs 4.56 Rato Rng And Pnon Gear Ford 9 Axle Seal Buy Kutrick 100mm Scooter Wheels - 100mm Pro Kick Scooter Wheels Replacement Pair - Smooth Bearing Installed | Plastic Core for Razor Fuzion Scooters