Here's a shot of the single adjustable shocks I got from Doug. Thanks again for the great deal!
The shock body was a bit larger than the stock replacements I put on there temporarily, and that required a slight trim on the rear sway bar link bracket. Doug suggested setting them in the middle at 8 and adjust from there. The ride is a bit stiff now, but not uncomfortable. I did notice a huge decrease in rear sway on quick turning. Nice! One of the front ones had the dial broken off so I'll be sending them back to get fixed up before installing them.
Here's a photo of the 275-40-17 on a 17x9.5 with 5.5" backspace on the front. Fits great! I wish I had just done 275s all around in the beginning so I could rotate them, but I originally thought a 255 up front would be better.
I think the widest I've ever seen up front on a g-body is a 285. I was looking at my frame and wheel/tire set up on Saturday and I can't help but figure that it won't take that much work to put 315-35s on 10.5" wheels up front. Something I'm going to have to really think about for the future...