mhodgson, Welcome to the Forum. The part you need is the part that most often breaks in these older .38DAs. and is very difficult to find by itself. Look for junker .38DA. 3rd or 4th model at a gun show, etc. You need the new style part, not the old style, so don't get a 1st or 2nd model junker. The problem with Popperts is that they have bins & bins of obsolete S&W parts that are not labled as to what the part fits, etc. and they don't know so they can't really help you sometimes. Good luck. Ed.