EXCEL from Richmond F10489L Differential Ring And Pinion Fitment: 2010/Ford/F-350 Super Duty/XLT Standard Cab Pickup 2-Door/6.8L 415Cu. In. V10 GAS SOHC Naturally Aspirated::Rear^^2010/Ford/F-350 Super Duty/XLT Standard Cab Pickup 2-Door/6.4L 391Cu. In. V8 DIESEL OHV Turbocharged::Rear^^2010/Ford/F-350 Super Duty/XLT Standard Cab Pickup 2-Door/5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated::Rear^^2010/Ford/F-350 Super Duty/XLT Extended Cab Pickup 4-Door/6.8L 415Cu. In. V10 GAS SOHC Naturally Aspirated::Rear^^2010/Ford/F-350 Super Duty/XLT Extended Cab Pickup 4-Door/6.4L 391Cu. In. V8 DIESEL OHV Turbocharged::Rear^^2010/Ford/F-350 Super Duty/XLT Extended Cab Pickup 4-Door/5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated::Rear^^2010/Ford/F-350 Super Duty/XLT Crew Cab Pickup 4-Door/6.8L 415Cu. In. V10 GAS SOHC Naturally Aspirated::Rear^^2010/Ford/F-350 Super Duty/XLT Crew Cab Pickup 4-Door/6.4L 391Cu. In. V8 DIESEL OHV Turbocharged...