Ford GC3Z-3A360-B
Radius Arm, Front Passenger Side

Servicing the radius arm of F-250 and F-350 ranges requires proper care of suspension fasteners because their failure produces high maintenance expenses. Only new fasteners accepted for installation must use parts with identical numbers or approved equivalent choices since inferior or alternative designs remain unacceptable. The correct retention of assembly parts requires following precise torque settings. Start by removing the spring before discarding the front nut along with bolt from the radius arm and adding new ones while tightening them to 400 Nm (295 ft. lbs.). The next step requires you to pull out and discard the radius arm rear nut and bolt while paying attention to tightening the new rear nut at curb height level to protect the bushing and achieve a torque value of 300 Nm (222 ft. lbs.). Complete the replacement by reversing all steps used during removal of the radius arm.

Service of the radius arm on F-250 and F-350 vehicles requires starting with spring removal. Begin by discarding both the radius arm front nut and bolt then install new ones before tightening the nut to 400 Nm (295 lb-ft). The procedure requires tightening the radius arm rear nut after aligning the suspension at curb height to protect the bushing; therefore discard the radius arm nut and bolt and install a new nut secured with 300 Nm (222 lb-ft). Reverse the installation steps of radius arm removal to finish the job. When performing replacements always use parts that match the original number or suitable equivalent alternatives since bad-quality substitution components can generate major service complications. The correct torque values need to be followed during reassembly to properly maintain the retention of essential components.