There is not better time to upgrade you drive shafts on your RC. These Super Punisher shafts can also be rebuild to extend their life.
Z-S1261 - 100-118mm - TRX-4 Front, TF2, Beast II
Z-S1088 - 109-134mm - TRX-4 Rear, SCX10
Z-S0984 - 111-136mm - TRX-4 Rear, SCX10 Front, Wraith Front
Z-S1014 - 121-145mm - TRX-4 Rear, MT10, Wraith Rear
Z-S0888 - rebuild kits.
Note - these will also fit a wide range of RC and these are offered as guidance.