Very simple! Went onto the website, pulled up the model number and make of my dishwasher. I was thrilled that there were schematics that were easy to find the parts needed and all my parts were in stock! Ordered and paid, parts arrived the next day! In less than 1/2 hour, I replaced all 4 of my upper tub wheel assemblies, slid in my new tracks, and capped the back ends on!
Next, I followed the video of replacing the dishwasher food chopper and check valve and had my dishwasher up and running again in less than 1 hour!
This repair was a breeze! Not bad for a 60+ year old lady!