Richard Nicholas Jr. recently repaired the front axle on his 1986 580 E Case backhoe, using 77 cast iron electrode and an AC arc welder . The king pin bearings were gone, and the pins had worn into the axle. Since Richard could not remove the king pins, he cut them with a friction saw, put the spindle into a press with heat, then filled in the wear with 77 electrode, built up the axle, and used a Dremel to cut a groove for the snap ring.
Richard sent photos of his project with the comment “the rods worked very well, and machined easily, and I am very happy with the results. The front axle is as good as new. Thank you very much for your 77 arc rods”