25 YRS. GTS 4.0. Left.BASE. PartQualifier: upper. Right.BASE. Stabilizer link nut. STYLE. upper. A solid metal or plastic bLock with a threaded hole in the center which is used to tighten or adjust the Camber Adjustment Cam. A solid metal or plastic bLock with a threaded hole in the center which is used to tighten or adjust the Differential Housing. Lateral Arm Nut. Mounting Nut for Suspension Shock Absorber. Nut for the Engine Mount. Part cannot be reused/reinstalled. Rack and Pinion Nut. Suspension Control Arm Nut. Suspension Stabilizer Bar Link Nut. Suspension Strut Mount Nut. Suspension Strut Nut. Suspension TRack Bar Nut. To Knuckle. To Suspension Control Arm. To Suspension Strut.