Product review (5 stars): Wish I had ordered this sooner!
So pleased with this!  This is so much better quality than the one the manufacturer sells, have replaced their's twice and they break within months.  I have way more confidence in this one. I skipped the included instructions and just watched the YouTube video others have recommended and it made taking the old parts off and installation super easy. (Just search for "Whirlpool W10712394 Adjuster KIT" on YouTube, the video is 13 min long but clearly and easily walks you throught the steps! ) Maybe only took me approx 20 minutes to take off the old parts and put on the new. Easy Peasy! You will need a flat head screwdriver to take off the old and they include a plastic accessory that matches the screw head for the new screws. It was loose in the box and I almost didn't find it or realize what it was.
So happy to have a properly functioning top rack again!