Traxxas Pinion Gear Rear Ring Gear Differential Hardened Steel

Brand: Traxxas
Model number: TRA7778X
Direct-replacement rear pinion and ring gear set for Traxxas X‑Maxx. Hardened steel with spiral-cut teeth smooth gear engagement and extend drivetrain life. Ideal for builders and heavy‑use drivers.
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$32.99

Product Details

Direct-replacement rear pinion and ring gear set for Traxxas X‑Maxx. Hardened steel with spiral-cut teeth smooth gear engagement and extend drivetrain life. Ideal for builders and heavy‑use drivers.
Cars: Traxxas X-Maxx 8S
Needed to Complete (not included):
  • Hobby knife
  • Glue
  • Paint and finishing tools
NOTE: Photo of completed model is for illustrative purposes only. This is a model kit that requires assembly.

More info

Traxxas Pinion Gear is a direct replacement for the X‑Maxx rear drivetrain, designed to handle high loads while maintaining smooth gear engagement. Built from hardened steel with a black finish and machined spiral-cut teeth, this set helps reduce noise and wear under heavy use.

Key Features

  • Hardened steel construction for long service life under high torque.
  • Black finish that resists corrosion and looks clean in the drivetrain.
  • Machined, spiral-cut gears for smoother engagement and quieter operation.

What's Included

  • Rear Ring Gear and Differential Pinion Gear

Why Choose This Gear Set

This set is for hobbyists who push their X‑Maxx hard—bashing, high-speed runs, or heavy-duty trail work. The hardened steel and spiral-cut profile improve durability and help the drivetrain run quieter under load. Good fit for experienced builders and anyone replacing worn or damaged rear gears.

About the Brand

Traxxas

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