Post your Gear Ratio / Tire Size MPG

[Bill Gutman]

2018 1500 Eassit 275x55x20  under 70 mph 24.7mpg 80 mph 22.4. 342ratio

[UofAZCats]

Don't know much about re-gearing other than I hear that upsizing from 3.08 to 3.42 would improve performance and from what I can tell reading this thread that gas milage improves.  Are there drawbacks?  I don't tow often.  Is there a recommended brand?  Cost to install?  TIA

[Homewrecker007]

13 hours ago, UofAZCats said:

Don't know much about re-gearing other than I hear that upsizing from 3.08 to 3.42 would improve performance and from what I can tell reading this thread that gas milage improves.  Are there drawbacks?  I don't tow often.  Is there a recommended brand?  Cost to install?  TIA

What engine transmission combo do you have? Going 3.42 certainly would help. And if you barely tow I would not go any lower gear then 3.42. If you live in the flat land you could probably get away with 3.23. Personal preference if you're going to be in there put a better limited slip posi in the rear like an Eaton or Yukon. You can put a true posi that's locked all the time but it will chew up the tires on corners. I've used Richmond and motive Gear brands for ring and pinion sets. You're somewhere around $300 to$400 for gear sets I believe $600 to $700 for the carrier if you so choose to change it. Which I definitely recommend. Whether you have the G80 or not.