Clutch help

#1
Ok so A Big thanks to mr Austin T for pointing out my bad selection in clutches. I wish I had asked what a good clutch was before i ordered it. Well now im screwed! Anyway, I can tell There is going to be room on the Crankshaft on either side of the clutch. What holds the clutch in place? Do I Need Spacers or is as what mr Austin T suggested, (I need to drill and tap the crankshaft) The answer? Or is it a combination or the 2? Thanks, Bossman.
 
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