woodpile, If you have a Numrich parts catalog, the parts breakdown is in it for the Savage Model 40 and it is a pretty simple and straight forward procedure to put the gun back together assuming you have a "competent" gunsmith in your shop. Brownell's Encyclopedia of Modern Firearms Parts & Assembly also has the same parts breakdown in it for the Model 40. Hope this gets you started. I have worked on these before and they are not complicated by any means. The Savage Model 340 is a more "modern" improved version of the old Model 40..........................Dick :wink: