Product review (5 stars): HIGHLY RECOMMEND REPAIR PART FOR KENMORE ELITE DISH WASHER MODEL 665-13963K017
This only took 2 days with my prime account to arrive, so I got home, opened the box and glanced at the pictures on the directions and decided they were worthless, so I read for a minute.  After the first piece locked into place, I was on the roll and had this sturdy roller assembly installed in about a half hour.  The stainless steel is 1000% better than the plastic it replaces, BUT that is not where the problem lies.  The problem with the Kenmore design is the shaft that the rollers roll on.  This unit does have a fortified roller shaft design and should last a lot longer.  I installed this Whirlpool adjuster kit on my Kenmore Elite 665-13963K017.  This kit is made in the U.S. and is a Factory Certified Part.  NOTE:  Install the adjuster thumb tads to the front of the rack...it may say this in the directions, but I didn't read them.  You'll also need a T15 torx screw driver to complete the installation.