The Nissan front suspension consists of upper and lower control arms suspended by torsion bars. Front lift is achieved by adjusting-up the factory torsion bars. Adjusting-up the bars without installing the Superlift system creates several problems, the major one being little or no extension travel, which is the suspension's ability to "drop." As ride height is increased, distance between the bottom of the upper control arms and their extension travel stops becomes less and less. This limited travel results in a very stiff ride. Without extension travel, the suspension cannot do its job of soaking up the bumps and dips. Additionally, this continuous "topping out" causes accelerated upper ball joint wear. Front-end alignment is also a problem. In summary, adjusting-up the bars alone is not a real option. Superlift replacement tubular upper control arms restore proper ball joint angle, camber angle and allow sufficient extension travel. The amount of lift available depends on pre-lift ride height. Two inches of lift can be attained if the bars have not already been adjusted-up from their stock setting. Rear lift, if desired, is via 2" longer shackles that give 1" of lift.