I decided if one needed replacing I might as well both two--made sense to me. None were available locally so I ordered them on-line. Surprisingly they came sooner than I expected. I also found a video on the internet that clearly showed the procedure. The actual repairs took 15 minutes or less. One good suggestion from the video was to run the screw in and out of the wheel bracket before final mounting. The video also suggested putting something under the corner to eliminate tipping. The replacement wheel assembly looks a little different than than the original but work fine. BTW, while you have the back cover off the frig, take time to vacuum out the dust and yuck. Pull the front panel too. Easy fix.