K 1500 Truck 4WD V8-6.0L VIN U (2001)
Ball Joint: Specifications
Wear Limit
Upper Ball Joint
No more than 3.18 mm (0.125 inch). If the reading is too high, check the lower ball joints for vertical looseness.
Lower Ball Joint
If the dial indicator reading is more than 3.18 mm (0.125 inch), replace the lower ball joint.
Check the lower ball joints for wear and for vertical looseness using the following procedure:
Inspect by sight the lower ball joint for wear. The position of the housing into which the grease fitting is threaded indicates wear. This round
housing projects 1.27 mm (0.050 inch) beyond the surface of the lower ball joint cover on a new ball joint.
