Product review (4 stars): Happy, But Keep Your Current Wheels and Watch YouTube for Instructions
The Rack Adjuster replacement went fine and is a great replacement for the previous flawed design. However, the wheels that came with the new Rack Adjusters did not fit, SO KEEP YOUR OLD ONES AND USE INSTEAD! Also, the directions are incredibly poor, but there is a YouTube video that was extremely clear.  Go to YouTube and find, "Replacing a Rack Height Adjuster in a Dishwasher" in the "Sears PartsDirect" YouTube Channel. Overall, very happy with the new adjusters and wish these were in our original dishwasher purchase! :)