Craftsman dump cart, tires, wheels, axles.

I've got an old dump cart that has the narrow tires and at time on a sloop and top heavy the cart will tip over. I'd like to just swap out the narrow tires/wheels for the tuff tires, thinking they will provide more balance. My concern is the axle, are all of the craftsman dump carts using the same type/size axle? Are the wheel on all models interchangeable, they look so from the pictures?



I'm tempted to just go buy a new dump cart, what the heck, its only money!