Parts that need to be printed several of:

3x Truck_V4_Axle_Diff_Gear1
4x Truck_V4_Axle_Diff_Gear2
4x Truck_V4_Axle_Diff_Halfshaft
2x Truck_V4_Axle_Diff_Halfshaft_Front
6x Truck_V4_Ujoint(Connects to driveshafts)
2x Truck_V4_Ujoint2(Outer steering joint for front axle)