Crossmember lock nut. Left. Right. 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. A solid metal or plastic bLock with a threaded hole in the center which is used to tighten or adjust the Suspension Crossmember Reinforcement. A solid metal or plastic bLock with a threaded hole in the center which is used to tighten or adjust the Transmission Support. Bumper Impact Bar Nut. From 11/19/2013. From 12/03/2013. Mounting Nut for Suspension Shock Absorber. Nut that secures Suspension Stabilizer Bar Bracket. Part cannot be reused/reinstalled. Part cannot reused/reinstalled. Part included in bearing assembly. Suspension Control Arm Nut. Suspension Shock Absorber Mount Nut. Suspension Stabilizer Bar Link Nut. To Chassis/VIN 1F-7-002 000. To Suspension Stabilizer Bar. Wheel Bearing Nut.