the racks on my doors had snapped and I needed new ones

I just put them right on. Took about a minute to figure on the right way to put the racks on (push them down from the top, until they snap into place), and it was done in less than five minutes. I was worried that this wouldn't work - I couldn't find the exact item # to replace the racks that had been on there. But it turns out that they are pretty interchangeable - the sub racks that the website suggested worked perfectly for me.