392 factory frame reinforcement

[Jtphoto]

Does anyone have info on the where the factory frame is reinforced on the 392.. when it was first introduced they had diagrams and photos all the changes they made in the frame but I can’t seem to find any of them.
Thanks.

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[1996cc]

I have this pic

 

[Jtphoto]

I have this pic

Thank you. That’s one of the ones I was looking for.

 

[Beachcomber72]

I have this pic

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