Product review (5 stars): Worked great and quite easy to install in my Whirlpool dishwasher ...
Worked great and quite easy to install in my Whirlpool dishwasher WDT970SAHV. I'm not happy that Whirlpool is still shipping out new models with that defective design. My machine is brand new but hated the squealing noise original adjuster's wheels were making every time I had to move the upper rack. This was an easy 30$ fix plus you get stainless steel adjuster body with wheels mounted on metal.

You can probably try getting this kit for free from Whirlpool if you have time to deal with their customer service :) I actually tried to request the kit from Whirlpool but was told my model was not covered... so this part is the real fix