[rsj]

I've got a Wasp slipper which I think is complete. There's the main part which fits on layshaft and has a threaded square drive, the spring cup with square hole which fits over it, 5 spring cone washers then the domed nut. Both main part and cup are alloy. Question is can I run a tufnol spur gear in the slipper as it is or do I need to fit some kind of pads?
Thanks j