[ QUOTE ]
So I have this correct in my head, The 68 and earlier crank keyway is cut pointing towards #1 TDC and the 69 up crank keyway is straight up at #1 TDC.
[/ QUOTE ]
The hub and keyway didn't change. The location of the timing index line on the inertia ring changed. The timing index line on the ring prior to '69 was directly in line with the keyway, and in '69 it was moved 10* counter-clockwise from the earlier location.