Hot bodies 1/8 diffs

[cmac]

O.K. I have one hybrid bulk built (rear), and I just got the slipperential built. Assembly went well most of the way, but I ran into one problem. One the the slipper pads fit just like a glove, but the other two were a little miss shaped. I had to do quite a bit of sanding and filing to get them to fit. Is this normal? If it was not for that I would have had that together in no time at all. I'm still waiting for the ring gear HBSC 8028 (from Malta). If it does not show in the next week I may order one of the gears on Ebay (second post). I'm just a little unsure because the model number don't match.