[shabby]

Rear:

TSW Nurburgring, Aluminum, Gunmetal, 19 in. x 10.5 in., 5 x 4.75 in. Bolt Circle, +65m Offset

How did you come up with that width and offset?
My 9" rims with +55 offset and 275 tires had some minor rubbing against the frame. With your rim/offset your bringing the rim another 29mm closer to the frame? Dont think that's going to work.

Here's my 9" rim and 275 tire http://i.imgur.com/kjfvOPT.jpg

And here's my 11" rim with +25 offset and 315 tire http://i.imgur.com/DaWij7O.jpg i can fit my pinky between the frame and tire, that's how close they are to the frame.
There's more space in the front than the back.

 

[shabby]

Those are 18's right? I think the 19s had more potential for clearance.

I don't see how, its the tire that rubs the frame not the rim.
A 9.5 rim with a +40 to +50 offset will work, but you cant fit a 305 tire under there, there's just no space unless you pull out the fender an inch. My 315 tire sticks out a bit http://i.imgur.com/TfRiA9P.jpg

 

[shabby]

*mind blown*

Did he take a sledge hammer to the frame? I tried but its thick a fudge.

 

[shabby]

A 10.5" rim on a 65mm offset puts me at almost the exact same outward position as shown in the picture above and brings me about an inch closer which as Wipeout has stated, puts me at either touching or almost touching the wishbone and/or the frame. It should be almost exact.

I'm not sure what Shabby is experiencing but it doesn't seem to line up, but my guess is that it has something to do with 18" rims.

He's right about the wishbone, an 18" rim is close to touching it and if you go airborne and the suspension fully unloads it'll probably touch it. But that's not the issue at hand, its the frame that's the issue.
If my 315 tire is a finger's length away from the frame and it sticks out from the fender like no other, how on earth is a 305 tire somehow fitting under the fender. I just don't understand, there's no magical offset that will stuff a tire that wide under the fender.

 

[shabby]

Do you happen to have a readout from your last alignment? The camber of the rear wheels? The toe as well

Toe is 0, camber was at -1.5 degrees.