* Add 1 Part 3713 Light Gray Technic, Bush (Extra)
* Add 1 Part 4274 Light Gray Technic, Pin 1/2 (Extra)
* Add 1 Part x71 White Rubber Belt Small (Round Cross Section) - Approx. 2 x 2 (Extra)
* Change {3 to 6} Part Black 2780 Technic, Pin with Friction Ridges Lengthwise with Center Slots (Extra)
* Change {3 to 4} Part Light Gray 4265c Technic, Bush 1/2 Smooth (Extra)