K 3500 Truck 4WD V8-6.5L DSL Turbo VIN S (1999)
7. For S4WD or F4WD vehicles, place the vehicle on jack stands. Place a dial indicator (1) against the spindle in order to show vertical movement.
8. Pry between the lower control arm (2) and the outer bearing race (1) while reading the dial indicator. This shows vertical looseness in the ball
joints. The lower ball joint is not preloaded and may show some looseness.
Notice: Do not pry between the lower arm and the drive axle (halfshaft.) boot or in such a manner that the ball joint seal is contacted. Damage to
the drive axle (halfshaft.) boot will result (4WD).
9. If the indicator reading is more than 3.18 mm (0.125 inch), replace the ball joint.
10. If the lower ball joint is within specifications, and there is too much horizontal looseness, check the upper ball joint for wear.
10.1. Disconnect the ball joint from the knuckle.
10.2. If you find any looseness or can twist the stud with your fingers, replace the ball joint.
