I really don't like leaving negative reviews. BUT for me I don't think I would take the risk of using the kit the way I NEED it the next day. I'll shell out another $10 or so and just drop by my local port freight service. First, it appears that a few hard drives have been used. They're all scratched. Second, the locking bolt fits flush on multiple discs. The disc depth is different for 3 discs. so they just flop around (not what I want). Third, and not very important, is that the case doesn't hold the hard drives tight. You just jump into the body. Fourth, there are no size markings on the discs. I guess I could guess, but then again, for an extra $10 I could sell all of these items. Otherwise they will probably work fine but what worries me the most is that in other reports like mine the rims didn't match the races properly either which worries me. Noticing these issues now, I don't want to delve into rebuilding axles only to find that the rim angles are out of the running. So, for the above reasons, the kit is returning tomorrow en route to Harbor Freight. At least I can look at them now. Hope this helps someone.