[BLKF250]

Ok i got an 05 F250 and i want to know a little bit about the suspension
ball joints what are the sign and symptons of them, how can you tell that there going bad? My sterring bar i believe if thats what its called correct me if iam wrong. The bar that is in the front that goes to the drive side to the passenger side thats connected by ball joints has a good half an in or more play in it is that normal?... Truck seems to have a little play in the sterring wheel and when i hit the brakes it seems like its gonna go all over the road anyone have any idea on what it can be? my lower and upper ball joints look good there no play inthem or anything...just alot of play in the sterring bar unless if thats how its suppose to be