Not sure if tamiya made a complete CVD kit for the TB03, but you need the following:
Tamiya (#54076) TB-03 Wheel Axles
Tamiya (#54078) 44mm Swing Shafts
Tamiya (#53500) C.Joint For Assy Univ Shaft
I use the 44mm shaft for my car, but the 42mm will also work if you use the spool with the stock blocks (1A).
Older TA05 universals will not work since the TB03 uses the updated 416 suspension axels.