Traxxas planetary gear differential is constructed of metal gear shafts with metal and plastic main differential. 

These are the replacement planetary gear and shafts for the Rad 2 and Hawk 2.

This is the main diff with steel ring gear from Traxxas for the Bandit, Stampede and Rustler VXL series.

Traxxas shock rebuild kit for 2 Traxxas black plastic shocks. Includes: Four E-clips Two C-clips Two O-rings Eight Washers Two Diaphrams

This is a replacement Traxxas Maxx Servo Gear Set, intended for use with the Maxx 1/10 Brushless 4WD Monster Truck.

This is a replacement Traxxas 2090 Digital High-Torque Ball Bearing Servo, intended for use with the Maxx 1/10 Brushless Monster Truck.

This is a Traxxas Metal Gear Set for TRA2085 and TRA2085X Servos.

This is a replacement Traxxas 2085 Digital High Torque Waterproof Servo, mounted for the X-Maxx Monster Truck.

This is a high-torque digital waterproof steering servo with metal gears for the Traxxas X-Maxx Monster Truck.

Traxxas 2080X Metal Servo Gear Set. Package includes replacement gears and grease.

This is the Traxxas 775 Titan motor. Features: Five-pole armature for superior torque and smoothness Fan-cooled Heavy-duty 5mm output shaft Features an extra wrap of steel around the can for maximum magnetic field strength

This is a Traxxas Waterproof Micro Metal Gear Servo.