The Hot Racing Traxxas X-Maxx Aluminum Steering Servo Horn Arm is an aluminum steering rack upgrade for the Traxxas X-Maxx. Features: CNC machined 6061 aluminum, anodized blue Replaceable lock nut to help prevent loosening of fasteners Retains stock double shear design for ultimate reliability Fits Traxxas 2085 servos This item replaces Traxxas factory plastic servo horn TRA7747