Ball Joint, Lower

Fig. 13 Checking Lower Ball Joint For Ware:

1981---83 F-100---350 & 1984---87 F-150 W/STAMPED FRONT AXLE
1. Adjust front wheel bearings as described under ``Wheel Bearings, Adjust''.
2. Check lower ball joint by grasping lower edge of tire and moving wheel in and out while observing lower spindle arm and lower portion of axle jaw. If movement exceeds {1/32} inch, Fig. 18, the lower ball joint must be replaced.
3. Check upper ball joint by grasping upper edge of tire and moving wheel in and out. If movement exceeds {1/32} inch, the upper ball joint must be replaced.