Factory Steering Box U-Joint – 1” DD to 3/4”-36

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Flaming River
SKU: FFG-4879-SLK-FR-2WD ISBN: 09442238

Factory Steering Box U-Joint – 1” DD to 3/4”-36 (Satin Finish)
Confirmed Fitment with 1967-72 and 1973-79 Fat Fender Garage Column Kits with a Factory Steering Box

This slim-profile, needle-bearing universal joint from Flaming River is the exact part we recommend when connecting our 1967–72 or 1973-79 F100 steering columns to the factory steering box. It’s compact, smooth, and built to last — the same part we trust in our own builds.

Crafted from high-strength chrome moly and featuring sealed needle bearings, it offers a tighter, smoother steering feel than old-school pin and block joints — with zero maintenance required. The low-profile design makes it ideal for tight engine bays and clean installs.

⚠️ Heads up: This U-joint is only for use with the factory steering box. If you’re running an aftermarket power steering rack (like Mustang II or rack-and-pinion setups), you'll need a different joint based on your rack’s input shaft. Reach out to us — we can help you get the right one.

Specs:

  • Size: 1” DD to 3/4”-36 spline
  • Strength: Rated to 300 ft-lbs
  • Finish: Satin
  • Maintenance: Zero-lube, sealed bearings
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WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts .

Fat Fender Garage creates industry‑leading parts, interiors, chassis, and full custom classic‑truck builds for owners who want today’s performance while preserving the soul of their original ride.

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