I have a Williams RS-3 with truck side frames that stick out further than other engines. These side frames strike the two binding posts nearest to the track on my Super O switches, throwing the switch.
If I were to shorten the binding posts, I would have no problem.
Does anyone know if Lionel made shorter binding posts? Alternatively, I would be happy if I could find plan hex nuts with the correct threads per inch. The binding posts seem to have a different thread count than a typical #4 screw with 40 threads per inch. Does anyone know which nuts would work and the threads per inch?