RE: Can you repair a cracked stock?
I had one that was cracked like that and I used Elmers version of the Gorilla glue, an acrylic type of glue that really bonds things together. I worked it into the crack and when it dried I just sanded things back and then painted the stock. I know that you are wanting to stain the stock, but I just figured that I would share how I solved the problem on one of the few that I have done. Another one I did very similar to how stalkingbear described.