Looking at new style Silverado Work Truck. It comes with a "trailer package" which includes a lower ratio rear end. I really don't know what that means; but assuming more torque. What I'd like to know is how much that effects MPG when not towing?
Thanks
Dave

 

what ratio?..a 410 will KILL mpg,yes..get a 373

 

Also think about if you are going to get larger tires. If so, then you will save money in the long run if you need lower gears. A 4.10 will be great with 33" tires as opposed to the stock 31.8. Should be either the 3.73 or 4.10 ratio in there.