I haven't found any supplier that can give me this answer. I got a new set of balls and tubes from Weaver that do fit my ball nut, but I'm not sure if the set has the right number of balls. It came with 54 balls, but I had 58 balls in the bottom of the steering and the smashed tubes on the ball nut when I tore the steering box apart. You see, the bottom thrust bearing disintegrated allowing the shaft to go way off center, smash the ball tubes, etc, blah, blah. This is a common problem if water gets into the steering box. Hey, oil floats on water, so bye bye bottom thrust bearing. Fortunately, the worm screw on the steering shaft is ok as is the inside screw of the ball nut because the ball nut/steering assembly and the whole steering box assembly are obsolete and no longer available.