The front axle is a pipe with a rod inside of it. I have done this on other things and holds great. I put a little (pre bend) in the axle after I put the rod inside then welded the spindles on. This works great and I have never had one bend yet , but I don't jump them either. It's hard to get good steering geometry when you buy pre are hubs, however I have used this setup before and it works pretty good, not great as a proper geometry would be but it is just a toy not going to mass produce. Thanks for the input.