Steering rack end nut for all later TVR power steering racks. New and redesigned giving better support, a higher quality oil seal( included) and reduced risk of full lock damage (O ring included . This is the large nut nut that screws into and forms the opposite end of the rack body from the valve block. This part is rarely a problem but can cause a problem if it cannot be removed if the steering rack is being reconditioned. This part is suitable for both right and lefthand drive steering racks.