BGMG 31139 Spindle Nut

Spindle Nut for Classic Ford, Dodge, Jeep, and Chevrolet Applications

This FSGR spindle nut, part number 31139, is a driveline and axle hardware component used in compatible front hub and spindle assemblies. It is listed for a wide range of classic trucks and SUVs, including Ford F-150, Ford Bronco, and Jeep Wagoneer applications.

Key Features

• Spindle nut for driveline and axle service
• FSGR brand line, part number 31139
• Application coverage for select Ford, Dodge, Jeep, and Chevrolet models
• Relevant for front-end hub and spindle maintenance on older truck platforms

Detailed Description

FSGR 31139 is a spindle nut used in axle and hub service where secure spindle retention is required. It is listed for 1979-1997 Ford F-150, 1980-1996 Ford Bronco, 1979-1988 Ford F-250, 1981-1985 Ford F-350, 1985-1993 Dodge Ramcharger, 1985-1993 Dodge W250, 1985-1992 Dodge W150, 1984 Dodge W100, 1978-1980 Chevrolet K20, 1979-1980 Dodge W200, and 1979 Chevrolet K10. It also covers Jeep J10, J20, Cherokee, Wagoneer, and Grand Wagoneer applications across the listed years. If you are searching for a spindle nut for a Ford F-150 or Jeep Wagoneer axle repair, part number 31139 is the referenced fitment.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

• Replacing a worn or damaged spindle nut during hub service
• Restoring proper spindle retention on older 4x4 front axle assemblies
• Addressing looseness or incorrect preload caused by damaged axle hardware
• Supporting maintenance on Ford Bronco, Ford F-150, and Jeep Wagoneer driveline systems

Installation Notes and Tips

Verify axle and hub specifications before installation, since spindle nut designs can vary by front axle and bearing setup. Inspect the spindle threads, bearings, and related hardware for wear before reassembly. Confirm the application against the vehicle’s year, make, and model listing for the best match.

Quality Assurance

FSGR 31139 is cataloged as a replacement spindle nut for the listed classic truck and SUV applications. Review the fitment details carefully to confirm compatibility with your specific axle assembly.