Product review (4 stars): Good solution to a poor original design
The parts in this kit are better made than the original parts that came in the washer.  And the roller mounts (which failed in the original system) are designed/built significantly better.  This area of failure should now be eliminated.  This kit should have been sent out to all customers for free by Whirlpool!
I didn't give a 5 star rating because the included instructions are the worst I've ever seen.  Explanations are cryptic and the photos are very unclear.  You need to take the time to pre-assemble the new parts off the rack so you get a good idea as to how they fit together before you attempt to assemble them to the wire rack.  Several of the pieces snap lock together so you only get one shot at the assembly of these pieces - do not fully assemble these pieces off the rack - just lay them out on your counter during your pre-assembly study.  Also, only work on one side of the rack at a time so you can use the old slide system as a visual aid to part orientation.