Heide R Great Neck , NY January 27, 2015 Appliance: Maytag Dishwasher MDB3700AWX Maytag Dishwasher Mdb3700awx: Racks were rusted. How to replace Upper Dish Rack. Bought news ones and replaced it. All I had to do was take out the old ones and put in the new ones. The hardest part was taking out the end caps on the top rack roller. The whole thing took less than 5 minutes. 5 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes