S10/T10 Blazer 4WD V6-262 4.3L (1989)
Ball Joint: Testing and Inspection
Upper
Fig. 19 Checking Upper Ball Joint. 4 X 2 Models
BRAVADA, TYPHOON & 4 X 2 MODELS
Before checking ball joints, wheel bearings must be properly adjusted.
1.
Raise vehicle and position floor stands under right and left lower control arms near each lower ball joint.
2.
Position dial indicator against wheel rim, Fig. 19.
3.
Shake wheel, Fig. 19, and read gauge. Horizontal deflection should not exceed .125 inch.
4.
If reading exceeds .125 inch, or if ball stud has been disconnected from knuckle assembly and any looseness is detected or stud is loose, replace
ball joint.
Fig. 21 Checking Ball Joints. 4 X 4 Models
4X4 MODELS EXCEPT BRAVADA & TYPHOON
Refer to Fig. 21 for ball joint inspection procedure on 4 x 4 vehicles.