I am in the process of replacing the beat up greasy Greek stock that came with my CMP 1903 Springfield. I have a CMP new manufacture stock from Boyd's, and I am realizing that there is more to this project than simply swaping the wood. The new stock comes with a brass bushing for the rear trigger guard screw, but little information as to its purpose, or how to properly install it. If not done correctly, I assume that the rifle will not be accurate, and the stock can split. Does anyone have some suggestions on how to properly install this stock? Thanks.