Commander 4WD V8-4.7L Flex Fuel (2009)
Ball Joint: Testing and Inspection
Front Suspension Upper Ball Joint
UPPER BALL JOINT
1. Raise the front of the vehicle. Place safety floor stands under both lower control arms as far outboard as possible. Lower the vehicle to allow the
stands to support some or all of the vehicle weight.
2. Remove the front tires.
3. Mount a dial indicator (1) solidly to the frame.
NOTE: The dial indicator plunger must be perpendicular to the machined surface of the ball joint.
4. Position the dial indicator plunger on the topside of the upper ball joint (5), and then zero the dial indicator.
NOTE: Use care not to pry or tear the ball joint boot, when checking the free play.
5. Position a pry bar (3) between the steering knuckle (4) and the upper control arm (2). Pry upwards on the upper control arm.
6. If the travel exceeds 0.5 mm (0.020 in.), replace the upper ball joint See: Service and Repair/Front Suspension Upper Ball Joint - Removal.
7. If the upper ball joint is within specs reinstall the front tires See: Wheels and Tires/Service and Repair/Removal and Replacement.
