Our spring pack is built and designed to be used with our Solid Axle Swap system. The springs feature a military wrapped end and come complete with all new polyurethane bushings and sleeves for the Xterra. The springs also feature anti-friction pads between the leaves for a quiet and smooth ride. Basic kits available containing only the springs packs. We also offer the rear replacement system complete with shackles, sway bar disconnects, brake line extensions, U-bolts, shocks and hardware.