Racks were rusted and the tines were breaking off

The bottom rack was easiest, just picked it up out of the dishwasher and moved the sprayer and the silverware holder from the old rack to the new rack and set it back in the dishwasher. The top rack was a little tricky, it took a minute to figure out to remove the little end-caps on the runners and then it just slid out. Slid the new one in, replaced the caps and moved the upper rack basket. It took less than 15 minutes to fix and now it's like a brand new dishwasher!