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# connectionPosition

The position of the wheel’s connection to the vehicle’s chassis.

```
var connectionPosition: SCNVector3 { get set }
```

## Discussion

This vector is expressed in the coordinate space of the node containing the vehicle’s chassis. When you create a wheel from a node, SceneKit uses the node’s [`position`](/documentation/SceneKit/SCNNode/position) property as the wheel’s connection point.

---

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