The Goal

1. Add Stretch BoneS

- Select the bolt ⬆️

- Cursor to selected ⬆️

- Add a new bone then change the length of the bone ⬆️

- Select the bone ⬆️

- Change its name ⬆️
2. Parent to Bone Front 3

- Select the stretch top bone then front bone 3 ⬆️

- Keep offset ⬆️