Product review (4 stars): I ordered from USA Parts. I ordered 2 thinking ...
I ordered from USA Parts. I ordered 2 thinking that is was a single unit, but instead received 2 pairs of the adjusters. They shipped the entire unit and not just the wheel assembly.  Also, it seems that Whirlpool has finally redesigned this part that was continually failing. The wheel assembly is now metal with plastic wheels. Hopefully, it will last longer than 6 months now!