Original Name / Part No.: 8916+8927Part location: Rear lower armsProduct major functions & usage: Stabilize the rear lower armsAccessories:Rear Lower Arm Mount (Front) 1pcRear Lower Arm Mount (Rear) 1pcStainless Steel Tie Bar (FF, FR, RR) 1pcStainless Steel Tie Bar (RF) 1pcStainless Steel Round Head Screw 4x12 3pcsStainless Steel Small Head Screw 3x12 2pcsMajor advantages of upgrading to this part/product:1. Good combo aluminum 6061 T6 mount + stainless steel tie bar for greater durability and more stable to use.2. CNC precision machining, lower the gap in between lower arms and the mount in order for the arms to swing more stable and smoothly.