I'm curious what mileage to you get with 33's 4.3 gears, roof rack towing and not towing?
I'll be happy to answer this once I get some data. I have an extensive mileage log that I keep every fill-up.
It may take awhile as I've been solely working from home with Covid going around. I do have a 1000 mile towing trip coming up and will report back then.