Craftsman drive axle replacement

[HCBPH]

If this is the 2d time it's broken in the same spot, I'd be suspect of it. If you have to stay with a 2 piece, would swapping that bolt out with a shearbolt make sense? That might give the next time before the axel gives out - a thought. Another idea would be could a single piece axel be made to replace it and would it be better suited for your machine than the current 2 piece unit?

[CO Snow]

The axle is 2 separate pieces to make each wheel steerable. The half axle that was just replaced was fine. The half axle that broke was original (9 years old) and it broke just like the other half had broken (through the hole in the axle where a pin attaches a gear). So I hope everything lasts now for another 9 years. Maybe should have replaced BOTH half axles when the first one broke.