Guy H Williamsport , PA March 20, 2015 The lower and upper washer arms of my dishwasher had become corroded 1) Ordered the replacement arms. 2) They arrived in 48 hours. 3) unscrewed one nut and replaced the loser arm. 4) unlatched the upper arm and replaced it. The entire replacement effort took less than 5 minutes. Done! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes