Nice towing truck especially with the 4:11 rear end
BUT you had best own an oil well or three as that baby won't want to pass up the EXXON station. I speak from experience. Having said all that, my Duramax isn't exactly cheap to fill up either. I'd look for a 3:73 rear end if you want a gasser, check the towing capacity and go for it if it all fits. Best of luck to ya.
HAPPY TRAILS 