I have a 15 year old Kenmore 110.92273100. It has worked great, but lately has been shaking during regular loads to the point of moving across the floor. I have read the other posts, and the water balance ring is OK, the feet are level, the auto level on the back is fine, the kidney-shaped wear pads were replaced last year, the 4 springs are intact. I ran it with water only and it still shook although not as much with clothes. I'm at a loss what to try next. Could it be the motor or tranny? Could it be the springs look OK, but are too stretched and should be replaced with new tight springs?

You might want to try the following link:

Home Problem Solver: Washing Machine Shakes, Vibrates, or Walks (http://hometips.com/home_probsolver/hps03/10_washer/hps_washer06.html)