Thanks guys.
Squeeze,
one of the odd things that I have discovered is that it is easier to get large tires for the 15" rims than for the 16" rims. I think that this is because of the offroad market.
Irwin,
Those wheels and tires look great, and offset a beautiful truck. I like the way the tires don't balloon on the side.
I was reading in a Trailering magazine that the 75 profile gives more stability than the 85 profile. That of course was pulling a trailer, but it was good information.