This is a Tamiya 53792 RC Universal Shaft Assembly - TT-01/2 TA04.
Compared to a standard axle/dog bone drive shaft, a universal shaft reduces power loss caused by friction during steering.
Compatible chassis: TT-01, TT-02 and TA04
Must use item 54477 when using this part with the TT-02 chassis
It was added to our catalog on Tuesday March 27, 2018