I removed the old shelf and disassembled all the parts, removing glass shelf, bins, doors, etc. for use with the new shelf frame. Unfortunately, I hadn't been able to find all the roller assemblies from the original shelf and didn't realize that they were not considered part of the shelf frame. So, after reassembling all the pieces that I had, I still needed to order one additional roller assembly and specialty screw. Knowing this up front would have saved me a nice chunk of time and additional shipping charges. Otherwise, the repair was pretty straightforward.