57) Spin the wheel about 60 degrees to give it a more natural position.
58) With the Select and Link tool, link the wheel to the leg.
59) Now this is very important because of the array we're going to create: select the Leg, go to the Hierarchy panel, click one time on the Affect Pivot Only button and move the Pivot Point to the center of the scene. After that, click one more time on the Affect Pivot Only.
60) Select the wheel and the leg, go to Tools > Array. Use these settings:
61) After this process, you're going to have 5 legs with 5 wheels.
62) Last step, aplying some new colors. Just for a better visualization.