7778 Pinion gear, differential, 13-tooth (rear) (Use with #7779)

Traxxas 7778 Pinion Gear, 13-tooth (rear), is a genuine Traxxas replacement part designed to provide smooth, reliable power transfer to the rear differential when paired with #7779, and it is compatible with select Traxxas models using this gear setup, such as X-Maxx and related platforms (verify fitment with your specific model).