another annoying aerox question

ok so i have a malossi gear up kit for my aerox which i havent used yet , i put it in the other day and when my bike was moving there was a rubbing sound from the gearbox , i took the cover off and there didnt appear to be any damage but i can lean the wheel left to right is this normal ? or should it be a tight fit ?

 

Is it a primary or secondary kit? Either way, something is wrong round the output shaft (one with the wheel on the end).

 

i have primary and secondary , ill take the wheel off and have a look

 

wheel bearings ??

 

i have a video of the problem but i couldnt load it so here is my trans