Just had a thread about these tires here:
I run them on my alloys, I personally feel their a little too narrow for my tastes, but that's probably due more to the offset of the alloy wheel than the tire itself. I like the 285/75 on the 16 inch wheel, I think that'll look great on the steelies you're getting. How wide are they? That's an awefully small tire for for AB to recommend, I wonder if it's a narrow rim.
For comparison, the 255/85 is just over 33" inches tall, and about 10" wide. The 285/75 16 is just under 33" tall and just over 11" wide.