Check the listing for details. Traxxas 5669 Locking Differential Servo Horn w/Built-In Spring & Hardware. Condition: New. Listed at 3.50 USD. New in package Traxxas 5669 Locking Differential Servo Horn w/Built-In Spring & Hardware This is a replacement Traxxas Servo Horn with spring and hardware, intended for use with the Locking Differential System on the Traxxas TRX-4. Includes: 2 Plastic Servo Horn Pieces 1 Spring 1 Screw We will combine shipping, just 50 cents more for each item.Vehicle models vary. We DO NOT guarantee this will fit the vehicle specified in this listing!Verify that this item is appropriate for your vehicle. Consult your manual or vehicle manufacturer.Verify vehicle fit-ment before purchase.Returns will only be accepted on items that are returned in new, factory-sealed packaging. Used, damaged (unless damaged when it arrived to you), and opened items will not receive a full refund. Any and all warranty claims will be handled through the manufacturer directly.