chevymitchell
Well-Known Member
- First Name
- Shawn
- Joined
- Feb 18, 2018
- Threads
- 94
- Messages
- 4,268
- Reaction score
- 10,228
- Location
- K-ville, NC
- Vehicle(s)
- 2019 JLUR (Pain Train), 2022 2500 AT4
- Occupation
- Avi Engineer
I would do the swap now. Out West, you're not only going to encounter many passes and hills to climb, but your Jeep will also be down on power and you will appreciate the return to a factory mechanical advantage. You'll see an increase of 1-2 mpg in your average, but again, you'll appreciate it the most when get into those mountain passes.I have a Sport with 35s and will be taking a 4000-5000 mile road trip out west in July. I currently have stock gearing. Would I be better off to swap gears now or after the trip? Looking to possibly save a little on fuel.
If you're considering 37's now or anytime in the future, run at least a 4.88. The 4.88 is close to factory mechanical advantage for a 37" tire. It's actually over-geared by a couple tenths.
Break-in isn't a myth, but it's also not as complicated or convoluted as decades of "black magic" may suggest. It's all about heat cycles, not necessarily load or shock load. I don't want the OP's thread to get hi-jacked by this tangent, but we can discuss in the axles section if anyone would like.
@UNC Rubicon and myself are also heading to Colorado and Utah in July; gonna be a great time.
Sponsored