Hey everyone, Im new to the jeep world, a converted cummins guy, just bought my first jeep, 2012 JK Unlimited sport and was wondering if any one has any ideas on a good lift thats out for the 12's. I want to run 35's or 37's. Still on the fence about that, also would be re-gearing to 4:88s or 5:13s unless someone has a sugestion for different gears. Also wondering how those gears would perform on the road with mpgs and acceleraion. Also if anyone knows some good cheaper in price aftermarket bumpers, I want to run a mid to full length front. Any ideas? Thanks

 

I bought a Full Traction 3" Premium Plus lift, 5100 Bilstein shocks and JE Reel ds for my '12 JKU to run with 35" DuraTracs. The good thing about the FT lift (other than the fact that is VERY high quality) is that, with the standard JE Reel front ds, you don't have to worry about the exhaust crossover issue. If you're interested, call Chris or Steve at FT...they're great guys, and will explain everything to you in detail.

As for re-gearing, after a ton of research I decided to buy 4.56's for mine (it's a manual). There's a very fine line between decent mileage and still being able to have the oomph to get up hills or pass people on the freeway.

Bumpers? Man, that's just plain subjective, with your own wheeling plans thrown in. Trying to save weight? Gonna add a winch? I had a harder time deciding on the bumpers than I did the lift or the tires.

Here's a link to a gearing site that will give you an idea of what you can expect from different combos of gears / tires.

http://www.grimmjeeper.com/gears.html

And here are the gear values for a manual. For an auto, select the Dodge NAG1 and it'll plug in the first set of #'s for you.

For #1 - your ratios are:
1 4.46
2 2.61
3 1.72
4 1.25
5 1.00
6 0.797

For #2
High = 1
Low = 2.72

For #3
Ignore

For #4
I'm assuming 3.73....or 3.21....or put in what you want to play with.

For #5
Put in your tire size.

Calculate