I would like to have visual instructions for the lower dishrack w10311986
Here are your parts
Replacement parts for Whirlpool DU9000XR9 Dishwasher | AppliancePartsPros.com
Click on the rack’s picture (Item 12 In Section 2).
A new page will open with more info, in the Q&A section is a link to a post which has the install sheet.