My axels keep coming loose and falling out as im driving my buggy. I think its because the little grub screw on the hub is getting loosened up. how do I fix this annoying problem?

are you using Loc Tite or some other thread locking compound? if not, there's your problem. even if you are, you should be checking them at least every few runs if it is a known issue with your buggy.

I put thread locker on all the grub screws, guess ill see if it works tomorrow. thanks for the advice.