I've been picking away at my Axial Ryft and one of the parts that i want to change is the hex nut behind the wheel. The stock part is plastic and I'm not crazy about that so a set of brass seems to be a necessary purchase. One of the issues I'm having with finding a set is the the diameter of the stub axle. I've found lots of 12mm hex adapters but most of them are made for 1/10 scale crawlers whose stub axles are smaller than whats on the Ryft i believe. Any advice or knowledge would be appreciated