better pic than what I looked it. I had thought it was 31.92, good catch.
EDIT: I checked again to see where I messed up but the drawing for a 67 actually says the center to center for the k frame mounting holes is slightly over 32 at 32-1/8 wide. 67 through 76 should all be the same mounting points. Engine mounts of course change but we're not talking about that here.
Looking at the drawing from the FSM, those lines aren't lined up with the holes so I'm wondering of they are referencing something else?
I'll measure my 73 k-frame when I get home .