What rod ends are holding your rear-end together? FK one-piece solid rod ends are made of zinc plated low-carbon steel to use on the rear of your ladder bars. These American-made solid rod ends can be used in areas where there's no angular change and they're built tough to handle the strain of being pushed and pulled. Rod ends are holding your rear-end assembly together, and if one breaks... well, it will definitely add to the excitement of racing! Choose wisely. Replace with FK solid rod ends.