Product review (4 stars): Worked for a KitchenAid KUDK03CT Dishwasher.
The door spring for a 10 year old KitchenAid KUDK03CT Dishwasher was broken - when opening, the door would just drop. Purchased this product (a set of ropes and rope guides) since I knew one of the ropes was broken but wasn't sure if the rope guide also needed to be replaced. Cost was about half as much as a local repair shop wanted.

After watching a few YouTube videos, I removed the rope and guide (noting which screw hole the guide was using) from the broken side of the dishwasher and put the spring, rope and guide back together. When opening the door, it made a squeaking sound around the rope guide area. After trying to troubleshoot the noise, I just placed the old rope guide back on with the new rope. No noise when opening! Decided to replace the rope on the good side as well.

Hardest part of the install was getting the dishwasher pulled out of the cabinet with enough room to play with the springs. Let's hope the string lasts as long as the factory original!