LAND ROVER Discovery II Series - 1998-2004 Arnott Part # A-2202 Product Weight: 4 lbs Original Equipment # RKB101200 Arnott's new Land Rover rear air spring for the Discovery fits both the left or right side. These Land Rover springs are made with a Continental Air Spring Bladder and come with a new air-line fitting which will mate up to the OE air lines with no modifications. Arnott recommends that you change both rear air springs at the same time. - DO NOT REMOVE OR TIGHTEN AIR FITTING ON THE NEW PART