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Home >> Chevrolet >> 1990 >> Step Van 7.4 N, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (SUSPENSION - FRONT ( R Series 2WD)) >> Ball Joint Inspection >> Upper Ball Joint

Upper Ball Joint

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1990 GMC Suburban, 1990 GMC Pickup, 1990 GMC Cab & Chassis, 1990 Chevrolet Suburban, and 1990 Chevrolet Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Upper ball joint stud is spring-loaded in the socket to minimize looseness and compensate for normal wear. Raise vehicle and support at lower control arm. Remove front wheel assembly.
  2. Inspect ball joint stud for lateral shake by gripping hub assembly at top and bottom and moving spindle inward and outward. Replace ball joint if any lateral movement exists.
  3. Ball joint should be checked to see if stud can be rotated by finger pressure only with ball joint disconnected from steering knuckle. Replace ball joint if stud can be twisted. Inspect upper ball joint rubber grease seal for cuts or tears. Replace ball joint if damage is found.
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