Joe, this might sound dumb but where is the pitman shaft? I W-D the hold treadle and then oil it real good until it ran smooth. Thank you very much for the help. I moved it to a solid floor and I can't believe how much better it runs. No more bounching. Big problem, like yours. I really don't have a place that doesn't have carpet that is practible. I'll try the rubber cushions. Again thank you