I just got my D60 in and it didn't have any hubs on it, but came witht he drive flanges. All I could find were the caps and the slug itself. So my questions are as follows 1. Which was do the slugs go in, I had them in both ways, with the flat face facing out, or with the small protruding stub thing facing out? 2. I currently have them witht he smooth flat face facing out. If this is wrong, how the hell do I get them out? Drill two tiny holes and use screws like on a locking hub? 3. Shouldn't I have a snap ring or something else to keep the slugs from popping out? 4. Should I be packing these things with grease when I install them? 5. Are the cover/caps just press on? Thanks!