Exact Align Pro parallel arm row kit to fit John Deere XP, ME5, ME+ planter row units with the short 15-3/4-inch parallel arms. The Exact Align Pro arm kits is provided as a complete solution which includes two upper arms, one lower arm with pre-installed 204 series ball bearings and associated hardware. This kit is for use with row units attaching to narrow mounting plates on the planter toolbar frame meaning the arms fit outside of the mounting bracket. Upper arms are made from precision laser-cut steel while the lower arm is made from super strong ductile cast which is nearly 2x heavier than the OEM part. Even brand-new OEM parallel arm and bushings allow for excessive play which only gets worse over time and use of the planter. The Exact Align Pro system is designed to eliminate unwanted play by ensuring positive connection points by employing sealed ball bearings for very long life. Exact Align Pro parallel arms are meant to be the last set of parallel arms you will ever buy as if any bearings were to fail, they can easily be replaced. Made in the USA.