guide rail stop broke and rake would pull out all the way and dishes would fall out and break,

I removed the bottom rack so I could get into the bottom part of the dishwasher. I needed to reach the back of the guide rail without taking the top rack off. The replacement part folds in half and needs to line up perfectly so that it slides in to the rail. It folds in on itself to latch and lock. If it locks before it is in - you can pop it back off with a screw driver. Be careful not to crack the plastic. The part cost less than $5 and saved me from a whole new dishwasher, to my 10 year old's disappointment.