DK-928993 Instructions

Dirt King 4130 Upper Control Arms for 2021+ Ford F-150

Parts Included

Quantity
Item Description
Part #
1
Driver Upper Control Arm
DK-928993-A1300
1
Passenger Upper Control Arm
DK-928993-A1400

1. Raise the vehicle and prepare for installation

a. Safely support the vehicle.

b. Remove the front wheels.

Vehicle in lift, ready for upper control arm installation

2. Separate the steering knuckle from upper control arm

a. Remove the sway bar nut and separate from the steering knuckle.

b. Remove the bolt securing the ABS line to the steering knuckle.

c. Remove the steering tie rod nut and separate the tie rod from the knuckle using a ball joint puller.

d. Remove the axle nut dust cover. Remove the axle retaining nut.

e. Remove the ball joint nut and separate the ball joint from the steering knuckle using a ball joint puller.

f. Support the steering knuckle to prevent overextending the brake and ABS lines.

Removing ball joint nut from steering knuckle

3. Remove the shock from the vehicle

a. Remove the three shock absorber upper nuts.

b. Remove the shock absorber lower nuts and bolts.

c. Remove the shock assembly. It may be necessary to pry down on the lower control arm to gain clearance to remove the shock.

Removing shock absorber from vehicle

4. Remove the upper control arm

a. Remove the two upper control arm bolts and nuts.

b. Remove the upper control arm from the chassis.

Removing OEM upper control arm from chassis

5. Install the new Dirt King upper control arm

a. Mount the upper control arm using the two factory bolts and nuts.

b. Torque the nuts to factory specifications: 122 ft-lbs.

Installing Dirt King upper control arm

6. Reinstall shock

a. Note: Aftermarket shock is required for proper alignment and to account for the additional down travel the upper control arm provides.

b. Install the new shock according to your manufacturer's instructions.

Shock installed with new Dirt King upper control arm

7. Reinstall steering knuckle

a. Insert the upper control arm ball joint into the steering knuckle. Torque the ball joint nut to 85 ft-lbs.

b. Install the axle retaining nut and torque to factory specifications: 30 ft-lbs.

c. Install the steering tie rod to the knuckle and torque to factory specifications: 66 ft-lbs.

d. Install the ABS line to the knuckle and torque the bolt to factory specifications.

e. Install the sway bar and torque the nut to factory specifications: 111 ft-lbs.

Installing ball joint into steering knuckle

8. Review your work

a. Review all your work and repeat the steps on the other side of the vehicle.

Final inspection of installed Dirt King upper control arm

9. Reinstall wheels and align

a. Reinstall the wheels and torque the lug nuts to your wheel manufacturer’s specifications.

b. Have the vehicle aligned at a qualified shop. If your vehicle is equipped with Advanced Driver Assistance Systems (ADAS), ensure it is recalibrated.

Truck reassembled and aligned after Dirt King upper control arm installation
For warnings and disclaimers, visit Dirt King Disclaimer.

Need Help?


Contact us for support.

Phone
619-944-8913
Email
info@dirtking.com

 

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