We have an electric cart, TXT maybe, it has a lift and bigger tires. Anyhow, it is the boys' vehicle for the time being. They ride the heck out of that thing, all over the neighborhood and property. They also strip the heck out of the rear hubs. We go through them quite often - I pretty well try to keep one on hand at the house. Is this normal? Is there another option? I have seen some offering "Heavy Duty" hubs, but am a little afraid that those may strip the splines on the axle, instead of the softer metal in the hubs. I presume a hub is cheaper than an axle?

Thoughts, advice? Is this just par for the course?