How do I get the lift I need without shackles?

YES Rumblefish360! Are you using the 3200 lb rated P3412002's? Or the next higher model # for 3400 lbs?

And 66340Sedan - thanks for showing those mounting brackets! I will get those too if I need them.

AlaskaJeff and OCDart - much appreciate the info on the wheels. I'm going to look into that as well, but that may be later on down the road since I probably don't have the $ for new wheels right now, and still concerned that my 265/50/15 will fit entirely inside the wheel well just by putting on a narrower rim. I mean, the tire is still the same width. Seems its probably also an issue of getting a rim with a different offset.