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HOMESERVICE MANUALSFORD2018F-150 XLT, 4D PICKUP EXTRA CAB, 3.5L ENG VIN G, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEFRAMES, SUBFRAMES & CROSSMEMBERSFULL FRAME AND BODY MOUNTINGREMOVAL AND INSTALLATIONFRAME MEMBERS-REAR FRAME SECTIONINSTALLATION
2018 Ford F-150 XLT, 4D Pickup Extra Cab, 3.5L Eng VIN G, RWD

Frame Members-Rear Frame Section: Installation

2018 Ford F-150 XLT, 4D Pickup Extra Cab, 3.5L Eng VIN G, RWDSECTION Installation
  1. Refer to: Joining Techniques .
  2. NOTE: Verify dimensional accuracy before  performing any welding operations.

    Install the new rear frame section into the mid rear section of the frame and tack weld the frame rails. Refer to: Body and Frame .

    GFD249878Courtesy of FORD MOTOR COMPANY
  3. Perform a final measurement, then final weld the new rear section to the mid rear section on all overlap joints on both sides. Use the General Equipment: MIG/MAG Welding Equipment
    GFD249879Courtesy of FORD MOTOR COMPANY
  4. Metal finish the joint area typical metal finishing techniques.
  5. Position the upper and lower reinforcements and clamp in place on both sides. Use the General Equipment: Locking Pliers
    GFD249880Courtesy of FORD MOTOR COMPANY
  6. NOTE: Reinforcement welds skip over frame rail joint.

    Weld the upper and lower reinforcements to the outer mid rear and rear frame section LH and RH sides.

    GFD249881Courtesy of FORD MOTOR COMPANY
  7. NOTE: Reinforcement welds skip over frame rail joint and do not go around the frame rail inboard corners.

    Weld the upper and lower reinforcements to the inner mid rear and rear frame section LH and RH sides.

    GFD249882Courtesy of FORD MOTOR COMPANY
  8. Metal finish the joint area typical metal finishing techniques.
  9. Refinish using a Ford approved paint system.
  10. Restore corrosion protection. Refer to: Corrosion Prevention .
  11. NOTE: To avoid damage to the spare tire winch when installing the spare tire, DO NOT exceed 200 RPM if using power tool equipment.

    Install the following items:

    1. As equipped. Refer to: Fuel Tank Filler Pipe 2.7L EcoBoost (238kW/324PS) . Refer to: Fuel Tank Filler Pipe 3.3L Duratec - V6 . Refer to: Fuel Tank Filler Pipe 3.5L EcoBoost (272kW/370PS) . Refer to: Fuel Tank Filler Pipe 5.0L 32V Ti-VCT .
    2. As equipped. Refer to: Muffler and Tailpipe 3.5L EcoBoost (272kW/370PS) . Refer to: Muffler and Tailpipe 3.5L EcoBoost (272kW/370PS) . Refer to: Muffler and Tailpipe 2.7L EcoBoost (238kW/324PS) . Refer to: Muffler and Tailpipe 5.0L 32V Ti-VCT .
    3. Refer to: Rear Spring .
    4. Refer to: Rear Shock Absorber .
    5. Refer to: Pickup Bed .
    6. Refer to: Rear Bumper .

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.