huh!!!??? there is no ball joint or tie rod end ever installed on a car that needs to have weight on it. Ball joints on certain 1 ton and 3/4 ton trucks have a very small amount of play new, and you still lift on the control arms with the suspension compressed to check them. How would you check front end parts with the car on the ground?? You may wanna check yours cause you might have a baby killer and not know it. I've done so much suspension work in my life is actually embarasing to me! PLEASE do not check your front end with weight on it, if you feel an issue (other then like strut mounts) with weight your already way late and are pushing fiery crash on your hands