F 250 4WD Pickup V8-7.3L DSL (1988)
Front Steering Knuckle: Specifications
Lower Ball Joint ............................................................................................................................................................................................... 90-110 ft-lbs
Upper Ball Joint ............................................................................................................................................................................................... 100 ft-lbs [1]
[1] 100 ft-lbs MINIMUM, advance the Upper Ball Joint nut to the next castellation, and install new cotter pin.