Clutch disc and pressure plate size

Can you get away with mixing these? I have a 10" pressure plate and a 9.5" clutch disc.

 

As long as the whole disc/friction material surface is covered i don't see why not.lay your disc on the pressure plate, if the fiber part is on the pressure plates smooth surface should be good.

 

...use it...

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I'd always wondered but never asked. I figured it would be okay, but glad you asked!