Pitman arm nut and lock washer for attaching the pitman arm to the steering gear box. Fits manual or power steering. Fits: Wranglers- YJ 87-95, TJ LJ 97-06, JK JKU 07-18; Cherokee, Comanche, Grand Cherokee- XJ 84-01, MJ 86-92, ZJ 93-98; CJ5 72-83, CJ6 72-75, CJ7 76-86, CJ8 81-86, SJ + J Truck 72-91.