You can see what car modifications of 雪佛兰 Astro [2003-2005] use 6x5.5 bolt pattern below:
雪佛兰 Astro has the following bolt patterns: 5x127 和 6x139.7. The table below shows how the bolt pattern (PCD) of the 雪佛兰 Astro has changed over the life cycle, depending on the vehicle generation: