Hi there, i curently have SPX1620Z2M motor on my super 2 pump, i have rebuild bearings on that pump 3 times, and after a year it starts to grind and make unbearable noise , if i purchase this motor will it be silent and a decent replcement, i was wondering, if i wanted to have it even more quiter, can i purchase dual speed version ( sts 1102) and will i be able to do direct bolt on to my super 2 pump housing.