Did you try yelling at them?

Yeah that almost never works...

Yelling from a long distance doesn't work...they don't hear you.. You have to be in their face and standing on their toes. That usually works, maybe not int he way desired...

Anyways, I'm curious why you're interested in 'that' one piece. The two biggest reasons people go to a one-piece
1) Rotational weight reductions. OEM two piece weights like 38 lbs. The aluminum one-piecers weight like half that.
2) gets ride of the carrier bearing design that can fail with higher outputs.

I don't see 1) being the case with that one. As for the flange It's already been answered but another way to think about it is that the spacer attaches to the shaft and to the car just like a wheel spacer. Just replace Hub with shaft and rim with pinion flange in that scenario.

As for fitment, I can only tell you that the S197 V6 and GT take a different driveshaft because the yokes are different. It's a Dynotech http://www.dynotechengineering.com/about-us/about-us and it appears to be a one-off so, like you said, I wouldn't risk it.

I have no real interest in it, except that I can get it for $100. My '08 V6 the 2-piece with a carrier
bearing, and from what I read and was told here, only the GTs get those, but I don't have a GT.
I have a noise while coming to a stop, just want to eliminate another area of fault. I could have
gotten a 2-piece like mine for $50.00, from a newer model, but was told it would not fit. It was
from a 2011+ model, so it would not be the same length or something.

I also know about the yoke differences, and you can buy the yoke for the V6 to get it to bolt
on, but I am not going to go through that... There is a video that shows how to put the flange
piece on V6 diff, and where to buy the flange.

The guy says in his ad, which I have indicated, that it will also fit V6, but his is a MANUAL, mine is
an Automatic. Are the shaft lengths different from Manual to Auto... This shaft still has a slip yoke
in it, at the end, and you can see the grease fitting.

I got no answer from the manufacturer...