I have a post war 3451 log dump car. As I understand it, activation of the sliding shoes activates the 'dump' action but it also activates the coil uncoupler. The obvious question is WHY? Is this just an idiotic design or was there a rational reason why? And can I modify/disable the coil uncoupler, even permanently without losing the functionality of the 'dump'? I could look for a wire to snip but if these functions are in series that will not work. The critical wiring to see and determine this is hidden in the under-carriage... There is a closed topic on this in this forum but the question is not answered.