RC4WD Traxxas TRX-4 ARB Diff Cover.

Features:

• CNC Machined
• Billet Aluminum
• Smooth Red Anodized Finish
  

Specifications:
Width: 1.38in / 35mm
Length: 1.50in / 38mm
Height: 0.73in / 18.5mm
Weight: 0.48oz / 13.5g