Product review (1 stars): I should have bought a Bosch.
It appears that Whirlpool has deliberately designed parts for their dishwashers that self-destruct after just a year of normal use. The Whirlpool W10350376 rack adjuster is absolute crap. Whirlpool chose to place cheap plastic parts in an enclosed, wet, and heated appliance.... duh! Design the part to last! Consumers are entitled to have a reasonable expectation that an appliance which costs over $1,000 (or even one that costs $200!) have parts that justify the high price.