Hi Alan,
Thanks for your response. My impression was that the weights were welded to the outside surface of the drum (as with some large trucks). Your explanation clarified my understanding in that the weights are relatively inconspicuous when the drum is installed.
One last question; at the very low melting point of lead, what is the effect on the brake drums during a period of hard braking?
Alan, I suggest you place a picture of a finished (balanced) drum on your web sit to accompany the unbalanced drums presented. It seems to me that your approach is much better then I ever thought.
Thanks again and all the best,
Ray 64BJ8P1