Lincoln Navigator: Rear Suspension / Upper Trailing Arm. Removal and Installation

Removal

NOTICE: Suspension fasteners are critical parts that affect the performance of vital components and systems. Failure of these fasteners may result in major service expense. Use the same or equivalent parts if replacement is necessary. Do not use a replacement part of lesser quality or substitute design. Tighten fasteners as specified.

1. Remove the wheel and tire.
   Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
   

1. Detach the wiring retainer and keep aside the rear wheel speed sensor wire.
   

1. 
   
   1. Remove and discard the upper trailing arm-to-wheel knuckle bolt.
      
   2. Remove and discard the upper trailing arm-to-frame bolt and flagnut.
      

Installation

1. NOTE: Only tighten the nut and bolts finger tight at this stage.

   
   
   1. Install the new upper trailing arm-to-wheel knuckle bolt.
      
   2. Install the new upper trailing arm-to-frame bolt and flagnut.
      

1. Attach the wiring retainer and the rear wheel speed sensor wire to the upper trailing arm.
   

1. Install the wheel and tire.
   Refer to: Wheel and Tire (204-04A Wheels and Tires, Removal and Installation).
   

1. Lower the vehicle so that the weight of the vehicle is on the wheel and tire assemblies.

1. 
   
   1. Tighten the new upper trailing arm-to-wheel knuckle bolt.
      Torque: 184 lb.ft (250 Nm)
   2. Tighten the new upper trailing arm-to-frame bolt and flagnut.
      Torque: 203 lb.ft (275 Nm)