I used Part #AP5956100 which is the same as Whirlpool/Kitchenaid W10712394. The nice thing about this kit is that it comes with two adjuster arm sets so that you can repair both sides. (If the wheels on the other side haven't broken off yet, they soon will). Also, the piece that connects the wheel to the arm is now metal and should last longer than the previous plastic. The kit comes with an instruction sheet which is fairly easy to follow. The only problem with it is that it doesn't tell you how to remove the old adjuster arms. You can see how to do that part by watching YouTube Videos by Handymom808 and/or Mike Senn. (Search for KitchenAid Upper Rack Repair.) Note that in these videos they are only replacing the bottom adjuster arm with the wheels (W10350376). The new kit comes with the Housing Assembly (top part) as well. It can be easily removed by poking out the upper tabs with a small flathead screwdriver like Handymom808 uses. That opens up the upper part of the housing like a clam shell and then you can pull the housing apart. Just follow the instruction sheet to install the new adjuster arms and housings. I should add that the part kit from AppliancePartsPros arrived very quickly, in about 2 days!