What I've been running on my '97 Tahoe for the last few years are
Michelin XLT 275/70-16 on a Custom OW Chrome 8"x16" 3-spoke rim.
I've been very happy with the tires. they bare giving me good service,
and are a good. all-around tire.
These same tires, and the exact same size were coming factory stock on
late '90's Toyota Landcruisers.
I've never had any rub, and never will. My vehicle is stock ride
One way to recalibrate for custom tire sizes in a jiffy, would be a
Hypertech programmer for the onboard computer (Not cheap though).
With this, you can get a little bit better engine performance/tuning,
alter redline RPM, alter shift points, and shift firmness, modify the
top speed on the vehicle (Most Chevy SUV's/Trucks are limited to 99MPH)
And also recalibrate speedo for possible future gear changes. Stock
settings can always be reset easily if need be, and they are stored in
the Programmer (Air pollution test, or Dealer Service) Just a thought.