Tom E Vista , CA July 27, 2019 Appliance: General Electric Dishwasher PDW7880G00SS Ge Dishwasher Pdw7880g00ss: Seals on dishwasher where worn. How to replace Dishwasher Tub Gasket. On the main seal removed the old seal and put the new one on. On bottom door seal I took the door apart and removed the old seal and replaced with the new seal. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes