In order to save on electricity for normal pool-water circulation, I would like to replace the motor on my Hayward Tristar with a 2-speed motor. I cannot go to a VS motor, as they only come in 230V flavors, and my pump-house/guest house share circuits on both legs of the 230V service, 60' from the main service entrance. The only 115V 3/4 HP 2-speed unit I can find (so far) is an A.O.Smith motor with the model #B973 (may be replaced with #C1109). This motor onlly comes in the 56J frame configuration, whereas the OEM Emerson motor has a 56Y frame. Will my Hayward Tristar wet-end accept a 56J frame?