Drivetrain Differentials and Rear-End Components

TRAXXAS

CARRIER DIFFERENTIAL HEAVY D

$17.82

SKU: T05W 3978

In Stock
In Stock
Ships by Jun 19
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Traxxas 3978 is a heavy-duty differential carrier designed as a replacement part for various Traxxas RC vehicles. It includes essential components for differential assembly.

This kit comes with two X-ring gaskets, one ring gear gasket, and two bushings. It is compatible with models such as the Traxxas E-Revo Brushless, XO-1, and E-Maxx Brushless, as well as the Slash 4x4.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandTRAXXAS
Part NumberT05W 3978

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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