I'd like to know whether a higher or lower gear ratio is better for towing. Considering a 2013 or 14 Silverado 2500 4wd. I plan to be in mountains as well as flats. Don't know what I'm going to tow...
If you can afford it, get a 2010+ diesel. No smell, quiet once moving, 700+ lb-ft of torque for reserve. If you stick with gas, get the 4.10. 6th gear is tall!