Original Name / Part No.: 8947Part location: Steering rod and servo area.Product major functions & usage: Assist servo to achieve smooth steering.Is this part adjustable? If yes ¡¦ how and why/purpose?YESHow: Install servo horn on different positioning holes. Insert tool into positioning hole of tie rod.Purpose: Adjust the length and the angle of tie rods.Accessories:Servo Horn 1pcSteering Tie Rod 1pcStainless Steel Cap Head Screws 3x12 1pcStainless Steel Round Head Screws 3x14 2pcsMajor advantages of upgrading to this part/product :1. Servo horn is made with a quality light weight high tensile strength aluminum 6061 T6 for great durability.2. Stainless steel tie rod makes the part stronger with great durability and stability. It can also prevent rusting.3. Tie rod as an adjustable design using clockwise and counterclockwise threads.