The new V4 GKTECH suspension arms are an even further improved version of our popular V3 Chromoly arms with even more adjustment. Rear traction rods allow adjustment of the rear multi-link suspension. They can be adjusted to eliminate bump steer and alter other rear suspension traction settings to improve suspension response. The lengths on these arms are fully adjustable and with the right adjustments, you can change the position and pitch of which the suspension rotates on, along with the amount of "anti-squat" of the rear. - V4 arms feature high quality 5/8" Teflon lined pillow ball rod ends which eliminate the flex found in factory rubber bushing offering a more direct and predictable feel. - V4 arms are manufactured from chromoly 28mm OD (3mm wall) tube with billet CNC machined ends with recessed ends for additional strength. - CAD designed, FEA tested, CNC machined ends, CNC mandrel bent arms (toe arms, camber and rear LCA's), CNC tube notched (camber and LCA's) and TIG welded. Vehicle Compatibility: - Nissan S13 240sx - Nissan S13 Silvia - Nissan S14 240SX - Nissan S15 Silvia - Nissan Skyline R32 GTS-T - Nissan Skyline R32 GTR - Nissan Skyline R33 GTS-T - Nissan Skyline R33 GTR - Nissan Skyline R34 GTT - Nissan Skyline R34 GTR - Nissan C33 - Nissan C34 - Nissan C35 - Nissan A31 Cefiro - Nissan Z32 300zx