Do i need to replace the tie rod ends when changing the ball joints on my 1999 ford exxplorer?

no jeff ! as long as the tie rods are still good then all you have to do is separate it from the steering arm. just change the ball joints and hook the tie rods back up.|||Only if they a worn also|||Tie-Rod Ends do not need to be replaced unless they are bent, damaged, or if the boot is torn. If everything appears okay, then it probably is of no concern. Clean it off, double check for tears or damage, and if it has a service port for a grease gun, inject some lithium grease into it until the boot swells slightly.|||only if they are bent or damaged