2018 Ford F 350 Super Duty Suspension & Steering Torque Specs

OEM-referenced torque, socket, and thread specs for the 3 front and rear suspension and steering fasteners on the 2018 Ford F 350 Super Duty — including the Rear Leaf Spring U-Bolt Nut (torques to 148-202 ft-lbs, 22mm socket, M14x2.0 thread). Every value is safety-critical; verify against your service manual and use a calibrated torque wrench. Full bolt specs for the rest of the vehicle are linked below.

Struts, Shocks & Springs torque — 2018 Ford F 350 Super Duty

On the 2018 Ford F 350 Super Duty, the struts, shocks & springs fasteners are: Rear Leaf Spring U-Bolt Nut (torques to 148-202 ft-lbs, 22mm socket, M14x2.0 thread). Suspension and steering bolts are safety-critical — use a calibrated torque wrench, replace any prevailing-torque (locking) nut that has been removed, and confirm the value against your service manual before reassembly.

Steering (Tie Rods & Linkage) torque — 2018 Ford F 350 Super Duty

On the 2018 Ford F 350 Super Duty, the steering (tie rods & linkage) fasteners are: Tie Rod End Nut (torques to 52-75 ft-lbs, 22mm socket, M14x1.5 thread). Suspension and steering bolts are safety-critical — use a calibrated torque wrench, replace any prevailing-torque (locking) nut that has been removed, and confirm the value against your service manual before reassembly.

Wheel Hub & Bearing torque — 2018 Ford F 350 Super Duty

On the 2018 Ford F 350 Super Duty, the wheel hub & bearing fasteners are: Front Hub/Wheel Bearing Nut (torques to 482-610 ft-lbs, Special hub nut socket socket, M34x1.5 thread). Suspension and steering bolts are safety-critical — use a calibrated torque wrench, replace any prevailing-torque (locking) nut that has been removed, and confirm the value against your service manual before reassembly.

How to torque F 350 Super Duty suspension & steering fasteners

Torque suspension and steering fasteners with the vehicle at ride height (wheels loaded) wherever a bushing is involved — tightening a control-arm or sway-bar bushing bolt with the suspension hanging pre-loads the rubber and it fails early. Clean the threads, start every fastener by hand to avoid cross-threading, and make the final pass with a calibrated torque wrench rather than an impact gun. Ball-joint and tie-rod castle nuts take a new cotter pin; never back a castle nut off to line up the hole — only tighten to the next slot.

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