Originally Posted by markdoane
Are you sure you need to replace the whole axle? Might be all you need is new hubs. Or at most hubs and backing plates. Is it a Hadco axle?
Our Overlander had 3 threaded caps on the brake drums, and one "hammer on" cap on a slightly different drum. If you can't find the threaded cap, you can get a new drum with a cap, and the problem is solved.
A new drum costs more than a cap, but if you can't find one, it is better than running without one.