Upper Rack with Wheels

Removed the lower rack and upper rack after removing the end caps on the rail. Order new replacement end caps. The originals will likely break because the plastic becomes more brittle over time. Unsnap the upper washer arm from the original upper rack and snap onto the new one before inserting it into the rails.

The trick is replacing the end caps. Using needle-nose pliers, bend the indented edge of the rails out so you can attached the new end caps without trouble. After they are in place, use the tip of the needle-nose pliers to restore the indentation on the edge of the rails to lock the caps in place.

Lower Rack- removed old rack and slid new rack in place.
Upper Rack- Removed the 2 plastic stops on rack slides using pliers to squeeze,turn slightly, & pull out carefully not to break them (although your company also carries those if I would have broken them). I then removed old upper rack, slid new upper rack in, pushed plastic stops back in rack slides and was finished

Rolled bottom rack out and lifted out. Replace lower rack by simply setting new rack on rollers and push inside dishwaher.
Top rack required removing plastic end clips on both sides of upper rack arms. Little bit struggle to remove but once out, old upper slide out of arms.
Installed new upper rack on arms and push retaining clips back in. Job complete.