Use: Vehicles & Remote Control Toys RC Parts & Accs: Motor Components Upgrade Parts/Accessories: Differential Main Gear Remote Control Peripherals/Devices: Motor Four-wheel Drive Attributes: Axle Bearing Tool Supplies: Assembled class For Vehicle Type: Cars Model Number: 13T 38T Metal Crown Gear Technical parameters: Value 4 Feature: Top-Quality Materials & Superb Craftsmanship Rust-proof treatment on the surface of gears, easy to use Durable metal construction for long-lasting performance Designed perfectly for AXIAL SCX10 90021 90022 90035 90028 90027 90034 Allow you to increase or decrease the final drive ratio and tune for different applications Specifications: Teeth: 13T 38T Main material: Metal color:metal color Suitable for: AXIAL SCX10 Crawler 13T Diameter: 11mm 38T Diameter: 37.15mm<br><br>Package Contents: 1 * 13T Gear 1 * 38T Gear Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.