I changed out the fluid and filter in my 700r4 on my 84 k5 today, and noticed a little metal in the pan. (It was just about all on the magnet, fluid looks clear.) This trans. was built a few years ago, and it runs fine. I haven't exactly been easy on it, but It never had any trouble shifting, and the fluid always looks nice and red. What I want to know is, is it normal to find a little light metal in the pan, or should I get my th400 ready to go in? Whatever It does, I'll probably run it until it goes out.