1999 Ford F250 ball joints

Hmm good question. I would first jack up the front of the vehicle just enough to get a pry bar under the tire and the ground. Lift up and down or wobble the wheel and see just how much play in the ball joints you have. If its drastic or alot then i would have fixed asap because it would be unsafe to drive. Hard question to answer since i cannot see them but just know they are the only thing holding your steering knuckle on and i have seen them seperate and cause major accidents. Wish i had a better answer but its your safety??? Hope this helps. Curt