Product review (4 stars): reworks great but not as easy to replace as expected
I gave it 4 stars not 5 because it was a bear to change out and came with no instructions.  My 1st tip is remove the whole tray and work on it on something tall and padded so it won't slip. take note of what has to be undone to remove the old one and follow the steps in reverse.  note there are 2 clips on the outside and one that holds it to the wire just below the adjustment lever. I used a flat head screw driver carefully to remove clips or to unseat hidden pincher tabs inside the box that had the adjustment level.

Overall it took 15 min and some tinkering to get it off without damage and put in the replacement part.  The down side is that slightly damaged the opposing side same part  because I tried to change it while still on the rack - see tip 1 above.