I would expect the 3.21 axle and the 3.92 axle to have different EPA ratings..They do not..I do not need to pull heavy trailers but the truck I want on the lot has the 3.92 axle..How much more gas will it burn at highway speeds with no load?
Wow! Lots of info....Thanks! I read through 4 pages but still not clear on why EPA ratings are the same..Please read this thread for any and all (and probably too much) info on the differences between the rear ends.
3.21. vs 3.92 gear
I’m looking to place an order and I’m not sure of which gear ratio to order. 95% of the time I will be driving the truck empty. Gas mileage is important to me so I’m ordering the e-torque engine. I tow a small trailer that weighs 4000 lbs and only do it 6-8 weekends a year. My concern is...5thgenrams.com
Welcome to the forums
Wow! Lots of info....Thanks! I read through 4 pages but still not clear on why EPA ratings are the same..