Left. Right. Shock nut. Upper. A solid metal or plastic bLock with a threaded hole in the center which is used to tighten or adjust the Active Suspension Air Spring. Lateral Arm Nut. Mounting Nut for Suspension Shock Absorber. Part cannot be reused/reinstalled. Rack and Pinion Nut. Suspension Control Arm Nut. Suspension Crossmember Nut. Suspension Stabilizer Bar Link Nut. Suspension Strut Mount Nut. Suspension Strut Nut. Included with: Shock assembly.