I have had this wheel slop since I have owned this truck. When I ran my 23mm hexs the slop was gone but I went back to the 17mm stock hexs and it came back. If I move the wheel from side to side while looking at the hex I can see where the slop is coming from. Its where the drive shaft sticks out of the hex. you can see play like the drive shaft thickness isnt thick enough for the stock hexs. Is that from normal wear? Or is that the way it is? Do you think if I get new hexs it will go away or is that ust traxxas way of not making tight tolerences?