Strange Random Clunk

[fenner408]

So i took my truck in to get new tires and an alignment the other day and they said my ball joints were getting pretty bad. Now ive noticed a random clunk occuring every once in a while. There seems to be no rhyme or reasone to it, and i cant make it happen. It happens the most when im turning a couple times when i hit a bump and some times just randomly driving. Is this my ball joints or something else. Thanks.