Traxxas Housings Left & Right with Pinion Collar RC Differential Housing - 3979

The Traxxas TRX3979 differential housings (left and right) with pinion collar are OEM replacement components for Traxxas RC models, designed to restore drivetrain function after wear or impact damage. This set supplies both the left and right differential housings along with one pinion collar, giving you the core structural parts needed to rebuild or replace a damaged differential assembly. If you're tracing a drivetrain noise, excessive slop, or play in the diffs, worn or cracked housings are a common cause, and fitting genuine Traxxas parts keeps the repair straightforward.

Key Features

• Includes both left and right differential housings plus one pinion collar as a matched set
• Genuine Traxxas OEM components, manufactured to original tolerances for a precise fit
• Directly addresses common drivetrain wear points including housing cracks and collar wear after hard running
• Compatible with Traxxas model reference 49077-3 — check your parts diagram to confirm fitment before ordering

What's Included

• Left differential housing (x1)
• Right differential housing (x1)
• Pinion collar (x1)

What You Need

• Any additional differential internals (gears, outdrive cups, bearings) if also worn
• Traxxas parts diagram for your specific model to confirm correct fitment
• Basic RC tools for disassembly and reassembly