S-Series American Made Performance Ford 9 Inch 3.25 “S” Rear Gear $1,899.00 Ford 9 Inch 3.50 “S” Rear Gear $1,899.00 Ford 9 Inch 3.70 “S” Rear Gear $1,899.00 Ford 9 Inch 3.89 “S” Rear Gear $1,899.00 Ford 9 Inch 4.11 “S” Rear Gear $1,899.00 REAR GEAR TECHNICAL DOCUMENTS News & Events Customer Spotlight Event Recap News Press Release Uncategorized Shop GearFX Select a category Engine Heater Variable 2 Driveshafts and Components Driveshafts Driveshaft Components Spal Fans and Accessories Spal Fan Accessories Spal Fans 6 inch 4 inch 5 inch 10 inch 8 inch 11 inch 12 inch 9 inch 7 inch 15 inch 16 inch 14 inch 13 inch Outlet Lubricants Jiffy-Tite Fittings Variable 1 Apparel Rear Gear Assemblies 90-100XX Hammerhead 90-300XX 90-200XX Rear Gear Components Ring and Pinions Housings and Components Housing Components Housings Intercomp Scales