Traxxas 2018 Plastic Gear Standard Servo [TRA2018] - HobbyTown
Amazon.com: Traxxas 2085X Waterproof Digital High Torque Servo for 168 months to 1368 months with Metal Gears (Ball Bearing) Fits X-Maxx : Toys & Games
Traxxas 2255 - High-Torque 400 Red Brushless Digital Servo - Hub Hobby
Amazon.com: Traxxas 2250 - Servo, Digital high-Torque 330 coreless, Metal Gear (Ball Bearing), Waterproof : Toys & Games