Heavy duty spindle nut kit engineered for 3/4 and 1 ton Dana 50 and Dana 60 front axles designed for automatic to manual hub conversion or replacement of worn spindle hardware. Compatible with 449 series hubs.

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Mile Marker SPINDLE NUT KIT for Dana 50 and Dana 60 front axles is engineered to provide the correct heavy duty hardware required for manual locking hub installation and service in 3/4 and 1 ton applications. Designed for 30-spline internal mount configurations, this kit supports automatic to manual hub conversions where applicable and serves as a direct replacement for worn or damaged spindle hardware during hub maintenance or axle rebuilds. Proper spindle nut hardware is critical for maintaining correct wheel bearing preload, secure hub retention, and long term drivetrain durability under heavy loads. This kit includes dual bearing preload nuts, locking washers, and outer lock nuts necessary to properly secure manual hub assemblies. Compatible with Mile Marker 449SS hub applications, it provides installers with the correct components required to complete conversions or service correctly. Whether upgrading from factory automatic hubs or restoring existing manual hub systems, this spindle nut kit ensures precise fitment, reliable bearing adjustment, and dependable performance. Each kit includes hardware for two wheels, allowing complete front axle service.

• Heavy duty hardware for Dana 50 and Dana 60 manual hub conversion or service.
• Maintains proper bearing preload and secure hub retention.
• Compatible with Mile Marker 449 series manual locking hubs.
• Includes hardware for two wheels for complete axle service.
• Includes bearing 2 pre-load nuts, locking washers, and outer lock nuts

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Information:

Engineered for 30-spline Dana 50 and Dana 60 internal mount hub configurations from 1959 to 2005 Ford, Dodge, and GM applications. Always verify spline count, axle type, and hub compatibility prior to installation. Follow manufacturer torque specifications to ensure proper bearing preload and long term durability. Professional installation recommended.

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Application Summary:

Year	Make/Model
1977-1986	Chevrolet K20
1977-1986	Chevrolet K30
1987	Chevrolet V20
1987-1988	Chevrolet V30
1990-1993	Dodge W250
1990-1993	Dodge W350
2000-2005	Ford Excursion
1997	Ford F-250 HD
1999-2004	Ford F-250 Super Duty
1959-2004	Ford F-350
1999-2004	Ford F-350 Super Duty
1997-2004	Ford F-450 Super Duty
1999-2004	Ford F-550 Super Duty
1988-1997	Ford F-Super Duty