Packaging Includes: Knuckle Arms-2pcs Grade 12.9 Black Round Head Screws 3x25-2pcs Grade 12.9 Black Round Head Screws 3x23-4pcs M4x2.5x11 Screw Pin-2pcs 3mm Lock Nuts-2pcs bearing 6x16x5-2pcs bearing 15x24x5-2pcs Front Upper Suspension Arm-2pcs Stainless Steel Pin-2pcs Stainless Steel Flat Head Screws 2.5x8-2pcs Stainless Steel Washer 2.5-2pcs Front Lower Suspension Arm-2pcs Stainless Steel Round Head Screws 3x20-4pcs Stainless Steel Round Head Screws 3x16-2pcs Original Name / Part No: 8552+8531+8532 Product major functions & usage: Knuckle arms: Stabilize the CVD axle, upper and lower suspension arms to perform good steering. Front upper & lower suspension arms: Support the knuckle arms to increase stability of chassis. Part location: Front upper & lower suspension arms and knuckle arms Major advantages of upgrading to this part/product: (1) The material has been upgraded to 7075 alloy , and the bearing design has been increased to make the bearing and steering block precisely combined. (2) Easy to plug and play, accurate steering, not easy to collapse. (3) Multiple Holes For Installing The Tie Rods With This Knuckle Arms (4) Suspension arms were made with curved outline to help to avoid hitting other components, create more space. (5) Delrin collars are inserted to minimize the gap and strengthen the fitting in order to prevent metal parts hitting plastic components. (6) Stainless steel balls are inserted and stainless steel screws are used to enhance sturdiness. (7) The fixing method of the stainless steel ball is changed to our special screw locking design for better security. (8) 3D streamline made by CNC machine and anodized with GPM Racing signature scratch resistant vibrant alluring colors. Suitable Model: TRAXXAS 1/7 UNLIMITED DESERT RACER -85076-4 TRAXXAS 1/7 UNLIMITED DESERT RACER-85086-4