Details

• Brand:

  

  

• SKU:

  389574-S2

• Positions: Left Front, Right Front, Front, Front Forward Front
• Other Names:

  Radius Arm Front Bolt, Radius Arm Bolt, Bolt 3 4 10X9.90 Hex HD

• Description:

  This is the genuine Ford hex head bolt in the 3/4-10 size, about 9.90 inches long, catalogued as a spring seat and radius arm bolt from the HB1 base hardware family, used in the front suspension of two-wheel-drive F-250, F-350, F-450, F-550 and F-600 Super Duty trucks. This large bolt secures a major front suspension joint where the radius arm and spring seat attach, carrying significant load and locating critical suspension geometry. This is a single-use, torque-critical fastener that should not be reused once it has been removed; always install a new bolt, because a reused bolt may not retain correct clamp load in this high-stress, safety-related joint and can loosen or fail. Fitting a new bolt restores a safe, properly clamped suspension connection. For a proper repair, clean the mating threads and surfaces, support and align the suspension components correctly, and tighten the bolt to the factory torque specification, including any torque-angle steps where specified; many heavy front-suspension fasteners use a final angle stage that must be followed. Inspect the radius arm, bushings and spring seat hardware while apart and renew any worn parts. Confirm your model, year, drivetrain and front suspension configuration against the VIN before ordering, since two-wheel-drive and four-wheel-drive trucks use different hardware. Genuine Ford construction ensures the bolt matches the original thread, length, head and strength class for a safe, reliable suspension joint.

• Notes: Part cannot be reused/reinstalled.
• Replaces:

  389574s, 389574s439

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