Astro Van 2WD V6-4.3L VIN W (2001)
7. Place a J8001 dial indicator (1) against the spindle in order to show vertical movement.
8. Pry between the lower control arm 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.
9. If the dial indicator reading is more than 3.18 mm (0.125 inch), replace the lower ball joint. Refer to Lower Ball Joint Replacement (RWD).
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 upper ball joint from the steering knuckle. Refer to Upper Ball Joint Replacement.
10.2.
If you find any looseness or can twist the stud with your fingers, replace the upper ball joint. Refer to Upper Ball Joint Replacement.
