Product Details
- Hobby knife
- Glue
- Paint and finishing tools
More info
These Traxxas Front Differential Gears restore front-end drivetrain function with a matched 37-tooth ring and 13-tooth pinion. They install where the front differential transmits power, making them a straightforward repair or maintenance part for Revo 3.3 owners.
Key Features
- Matched 37-tooth ring and 13-tooth pinion for correct gear mesh and smooth power transfer.
- Designed for the front differential to keep front drivetrain geometry intact.
- Direct replacement part that gets a damaged or worn front differential back to service quickly.
Technical Specifications
- Ring gear: 37 teeth
- Pinion gear: 13 teeth
- Position: Front differential
- SKU: TRA5379X
- Category: Pinion gears
- Compatibility note: Common replacement for Revo 3.3 front differentials (as referenced in product listing)
Why Choose This Product
If your front differential has noisy, chipped, or skipped gears, this matched 37T/13T set brings back reliable engagement and quieter running. It’s a practical, repair-focused part for intermediate or experienced hobbyists who want a clean swap that preserves factory fit and function.
About the Brand

Perfect for Rustler 4x4
These are beefier and fit my Rustler 4x4 perfectly! Bought a used rustler and it had already upgraded rear gears, so I had to buy matching ones for the front bc the ratio was different from stock. But honestly, it's a great upgrade since they're beefier and seem like they can handle way more power and torque without any probs compared to the stock gears!