Ford 6L5Z-3078-AA
Lower Control Arm, Front Passenger Side

Service and repair of the lower arm coil spring suspension begins with spring removal before proceeding to disconnect the lower control arm through its two bolts and flag nuts. The repair of the lower control arm begins by removing two bolts which secure the flag nuts followed by separation of the lower control arm. The installation should begin with tightness of 200 Nm (148 ft. lbs.) for the rearward bolt on the left side and 175 Nm (129 ft. lbs.) for the right side bolt. The technician must tighten the forward bolt until it reaches 200 Nm torque value (148 ft. lbs.). The jounce bumper installation process should include new part replacement followed by nut tightening at 25 Nm (18 ft. lbs.). Reverse the removal steps to install the components before checking the front end alignment because necessary adjustments may be needed. The installation should use either a new part with the same part number or equivalent part because inferior quality substitutes or alternative designs might cause important service problems. Use the designated torque values throughout the reassembly phase to guarantee the correct retention of essential hardware.

The first step to work on the coil spring suspension lower arm requires removing the spring. The service begins by removing two lower arm bolts together with flag nuts and lower control arm. The process of installing the new lower control arm requires new bolts which must be tightened to 200 Nm (148 lb-ft). The jounce bumper requires replacement alongside its nut and the new nut should be tightened to a value of 25 Nm (18 lb-ft). After reversing the removal steps use the alignment equipment to check front end alignment before necessary adjustments. Using suspension fasteners with the same part number or equivalent version helps keep performance levels while avoiding expensive maintenance costs and requires strict adherence to torque specifications for the retention of important components.

To prevent unexpected inflation or deflation of the air springs or shocks.

Remove and discard them, ensuring to tighten the new upper arm nuts to 133 Nm (98 ft. lbs.) at curb height.

Tighten the nuts to 133 Nm (98 lb-ft).

Mark the position of the front suspension upper arm adjustment cams.

Reverse the removal procedure and check the front end alignment, making adjustments as necessary.

Position the upper arm and loosely install two new upper arm flag bolts, set shims, and two new nuts.

Remove the two nuts and bolts, along with the front suspension arm bushing joint.

Raise the vehicle on a hoist and remove the wheel and tire assembly.