Re gearing a Jeep (who is the go to shop for swapping gearing in axles)?

[Brian]

Maybe a programmer would give you the little extra you are looking for.

That's a good point. My lift kit came with an AEV procal that helped out the tuning and speedo, etc. quite a bit but I don't think it can do as much as a superchips or something. I should look into that.

[Jeffrey Lebowski]

I have 37s on my 4.5in 2012 4-door…. as I still drive it 80mph on the 470 quite a bit.

Wow.
I could barely get my STOCK (2009) 4 door Rubicon up to 80mph on a flat road.

[Brian]

Wow.
I could barely get my STOCK (2009) 4 door Rubicon up to 80mph on a flat road.

The pentastar (2012+) engine really made a difference for the 4door. First time I drove it it was like night and day.


Sent from my iPhone using Tapatalk

[Jeffrey Lebowski]

The pentastar (2012+) engine really made a difference for the 4door. First time I drove it it was like night and day.

Sent from my iPhone using Tapatalk

Mine was such a dud. Always in the damn shop. Bought it new with the "lifetime" powertrain warranty, which was worthless.
It makes me sick, it was my 6th consecutive jeep… and last. (Edit: And other than 2 CTDs which were "extra" cars, I'd only owned jeep to that point, excluding my wife's cars and even she had one at one point).

But I have many friends who had great luck with JKs.

[Hotchef181818]

Great thread, I've been wondering about this a while too.

I have 37s on my 4.5in 2012 4-door. I got 4.10 gears from the factory which work great 90% of the time. But I-70 up/down the mountains is a huge pain, as it chokes near Vail pass / Eisenhower every time. I'm planning on 4.88 but am worried about highway use as I still drive it 80mph on the 470 quite a bit.

There's a guy in parker who is supposed to be cheap. But I've heard Crawlertech for a good (and expensive) job.

I've thought about trying a cold air intake first, since it would be a much cheaper upgrade. Just need a little bit more cool air to make it up and over the mountain.

Guys name is josh, does a shit ton of re-gears. Good guy, good prices. He re geared my tj to 4.88 and it made a world of difference with 35" blue label bfg krawlers. If you're interested shoot me a pm and I'll find his contact info.

[hurley842002]

Guys name is josh, does a shit ton of re-gears. Good guy, good prices. He re geared my tj to 4.88 and it made a world of difference with 35" blue label bfg krawlers. If you're interested shoot me a pm and I'll find his contact info.

Josh is good to go, I can't recall what I bought from him, but I've dealt with him before. Pretty bad when you've made so many deals that you can't even remember.

[newracer]

Not that I know of, I sent a PM to the guy on co4x4 that has the original. Hopefully he can upload it on youtube.

[newracer]

My 07 JKU Rubicon has plenty of power but it is totally stock.

[Jeffrey Lebowski]

My 07 JKU Rubicon has plenty of power but it is totally stock.

All mine had were neoprene seat covers and quadrabling floor mats.


Edit: Admittedly I'd hop in it after driving around in a 1 ton diesel, but still.
It wasn't horrible. I had a 4 cyl (lifted, locked, etc) YJ with a 3sp auto. That was horrible in CO.
I didn't really get the complaints some folks had about them in the mtns, we took it and it was fine.
But getting up to 80 or going "fast?" No. It was a very underpowered, but average SUV-ish sort of car.

[Brian]

All mine had were neoprene seat covers and quadrabling floor mats.


Edit: Admittedly I'd hop in it after driving around in a 1 ton diesel, but still.
It wasn't horrible. I had a 4 cyl (lifted, locked, etc) YJ with a 3sp auto. That was horrible in CO.
I didn't really get the complaints some folks had about them in the mtns, we took it and it was fine.
But getting up to 80 or going "fast?" No. It was a very underpowered, but average SUV-ish sort of car.

Don't tell my wife but I hit 95mph eastbound on 470 tonight coming home when I had the music cranked and I wasn't paying too much attention. Glad I didn't meet my friend with the flashy lights. Even with the heavy 37s and 4.5" lift, it was stable. Not that I'd recommend driving stupid though. Darn that long-haired rock and roll music.