Stronger driveline for the flux ?

[speedy]

Hi !

I'd like to run my savage flux for more than 3/4 pack before it break's down :)
is there any upgrade part's like drive shafts and output's that are alot stronger than the stock part's ? I,ve only driven my flux for mane 3 pack's since i bought it in october last year, because of the fact that it always breakäs down on me !

The stock diffgears lasted for 3min's and the output's for 10-20min !
The output's split into two parts and the driveshaft pins snaped.