Tony - good to hear from you and thanks for the offer pal, but it's the short cable I'm dealing with.
Dustin - Ya, they all look the same from a distance.
Bill Rose contacted me and said he had to loosen the shaft, etc. in order to get his to fit. He sent me some pictures and it is really snug.
I contacted Greg Cullum and Dan Vasic last night and they sent me these pictures. My setup is #325875 which is apparently not correct for a Chevelle, it should be #320266. The correct cable is in fact about 1/2 inch longer and the holes are "elongated" as well. At this point I will take their word for it.