# Setup Tips

1. Similar to the custom vehicle controller, center of mass has a huge influence of the handling. It is recommended to set it closer to the rear of the trailer.

<figure><img src="https://3780384024-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVPyvySfaC85jUgVcDPRJ%2Fuploads%2FP4eFGL3sl7qdYvgS9kjO%2Fimage.png?alt=media&#x26;token=84f92763-83f8-4426-93c3-f654da67e258" alt=""><figcaption></figcaption></figure>

2. If the suspension raycasts go through the vehicle's body, set its colliders to a certain layer.

<figure><img src="https://3780384024-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVPyvySfaC85jUgVcDPRJ%2Fuploads%2Fc7eC4fmdAgcOlZgUSoQC%2Fimage.png?alt=media&#x26;token=09a5f10a-af9e-4c74-8e8c-e6870e1ceb83" alt=""><figcaption></figcaption></figure>

Then, set the "Ignore Layers" on the TrailerController to the same layer.

<figure><img src="https://3780384024-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FVPyvySfaC85jUgVcDPRJ%2Fuploads%2F0ig4tExREDk39fYqNey4%2Fimage.png?alt=media&#x26;token=f5085d48-1eff-4b02-b933-df5f7d3244d5" alt=""><figcaption></figcaption></figure>