I am looking for a shaft/armature for a Waterway Executive, 56 frame, 4 hp, 2 speed pump motor. The motor is made by A.O. Smith. This shaft would have threads on the end for the waterway wetend-impeller. I broke off the threads on mine while rebuilding it. If you replaced your pump like this and kept the old one please drop me an email. I don't care if the bearings are bad, I will replace them anyway. Any spa repair people might even have an old one they replaced. Any help by an expert as to if a 5 hp armature (or others) are the same would be appreciated. I am just a private party trying to save what was a good motor and some $$. Thanks; Gary