[MaxxFusion]

Here are some links to the parts you will need.

SuperMaxx E-Maxx Hardened Steel Idler Kit

This is the center CVDs needed for the extended GMAxx chassis:
SuperMaxx Titanium Center Driveshaft Kit, EXT Electric Chassis

Maximizer 7075 Aluminum Diff Cups


Integy Aluminum Diff Case

Integy Gear Box Collar

Maxx 2.5 Cvds by RD Logics