The hardest part was finding a replacement for an obsolete part number printed on the old completely plastic adjusters. The axle for the racks rollers were all broken. The replacement part was mostly metal and looked quite different even though it was cross referenced clearly. Just didn't look right to me even though it was the correct part. I easily replaced it after taking one off and just putting the replacement back on. I took one off at a time so i could look at how the old one was attached bdfore i put it on. Then I replace the other one. The dishwasher is back in service and working well.