Metric sleeve/shroud: Includes 1 washer, 1 dust cap, 1 hub/star (brg & snap ring installed), 1 sleeve, 1 shroud. Fits JD 1700 series (using original tailpiece bolts), 7200/7300 planters* w/ welded stub shaft. For JD 7000/7100 and older Kinzes, tailpiece must be updated to bolt-on style (not waterpump/roll-pin type). *For planters, Keeton seed firmers or ‘seed-lock’ wheels must be used for seed-firming (Thompson wheels do no packing of the seed). Also fits JD 1850, 750 drills (above serial #3834). Uses top-quality NTN bearing. US Patent No 6,907,833.