The Hot Racing Traxxas E-Maxx Aluminum Differential Carrier Case is an aluminum differential cup upgrade for the front or rear differential on the Traxxas E-Maxx, E-Revo, and XO-1. Replaces Traxxas TRA3978 differential carrier.

Features:

• CNC machined aluminum
• Anodized blue
• Replaces Traxxas TRA3978 differential carrier
• Fits either the front or rear differential

Includes:

• (1) differential carrier
• (4) ring gear screws

NOTE:

• Reuse Traxxas spider and output gears (Traxxas 3978), gaskets and o-rings (front Traxxas 3978), and ring/pinion
• Use thread locking adhesive to keep screws from loosening due to vibration
• Do not over tighten
• Use only silicone diff lube