Mile Marker 95-32721 1 Ton Nut Conversion Kit fits 1999 2004 F350 F450 Super Duty 4WD - Minimizes Wear & Tear on Drivetrain - Helps Save at the Gas Pump

From Automatic to Manual: Change your vehicle's automatic hubs to manual locking hubs using Mile Marker's hub nut conversion kits. Reduces Wear & Tear: Mile Markers 1 Ton Nut Conversion Kit reduces wear and tear on your vehicle's drivetrain. Warranty: Backed by Mile Marker's 1-year limited warranty, ensuring it is free from defects in materials and workmanship. Vehicle Compatibility: Fits 1976-1993 F350, 1988-1997 F Super Duty, 1995-1997 F350, 1993-1996 F250, 1997 F250 HD, 1998-1999 F250 & 1999-2004 F350/F450 Super Duty; Fits 4WD vehicles. Country of Origin: Mile Marker's headquarters are located in Pompano Beach, Florida, while its main distribution center is situated in Kalama, Washington; Additionally, some Mile Marker components are manufactured in China. 1 ton use. Use with a Mile Marker 449S/S. NOTE: The kit is required on Ford super duty trucks prior to model year 1999 that have an in cab controlled 4WD Vacuum system. If the truck already has factory manual lock-outs or after market manual lock-out, the conversion kit is not needed.