I think my question fits in with this thread so here goes. I’ve chased clutch chatter from my Apache for several years. I’ve tried a resurfaced flywheel and new clutch (temp fix -gone but came back), 2 piece rear main seal, new engine mounts all the way around. Several 3rd gear starts to get it hot (short term improvement).

So this winter I’m throwing the book at it. Engine out, new rope seal, new clutch and PP, and more but that’s off topic for now.

I’d go new flywheel but I can’t find a source of new production...anywhere. Plan B is then a used one from a ‘58 truck engine. It should be on it’s way soon to me so I’ll see how it looks in a week or so.

These pics are of my existing flywheel, my main questions are: are these circled spots the hard spots HRL refers to? And if I had this flywheel resurfaced the chatter would return? (as it did before).
If this used one coming in has similar spots - am I stuck with clutch chatter forever? Aside from going automatic- banish the thought.
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'59 Apache
‘21 Beta 390RS
‘18 BMW R1200RT
'12 Ford Flex
'13 Aprilia Tuono
‘11 Ducati Hypermotard
Salisbury, MD