The track rollers on my previous adjuster had broken. So every time you shifted it even a little the whole rack, dishes and all, would fall. Unfortunately, because you can't replace just the rollers I had to get a whole new adjuster unit. Thankfully Appliance Part Pros exists. Not only was I able to find the kit I needed at a reasonable price, but they also had a video showing exactly how to install it (thank you, Simon!) It took me a little longer because the original adjuster was a bit different from the one he took off in the video, but I was able to figure it out. Thanks to the video, it took me less than 30 min to install the new kit! Now, I no longer have to worry when my kids and husband load the dishwasher.