Arrowheads are earned both during the Wolf year and during the Bear year. I added a link for scouts on the Pack 184 page that reviews cub scout uniforms and patch placement. Please check it out on the right side under "links for scouts." There is only one gold arrow point for Wolf and one Gold arrow for Bear. The remaining arrows are silver. As the link shows, you group the wolf arrowheads below the Wolf badge on the left side of the uniform, and next year the Bear arrows will be grouped below the Bear badge.
http://www.pack184.info/