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Topic Review (Newest First)
01-02-2013 11:30 PM
Seeuoffroad I'm still tracking the mileage. The other day i was running all over town and was getting 15.5. It may take a couple more tanks of gas to really get an accurate read.
01-02-2013 06:11 PM
MichiganJeepster
Quote:
Originally Posted by Seeuoffroad View Post
2012 auto 35" tires. Mileage in town 14.5 on the highway 15.8 but I live in Nebraska. It's flat real flat. With 4.88
Mileage seems low I have a 2012 auto 3.73 and 35's and get 17 average city/highway. 4.88 gears might have something to do with it although some guys have done this and mileage has gone up.
12-28-2012 11:56 PM
DrWardner 2013 JKU 6 speed with 3.21, 3" lift, 35's. I would like to regear. It's definitely retarded in 1st gear, and 6th gear. Noticeable, but not unbearable. I get decent mileage though. My suggestion, is get your tires, if you can live with it, don't worry about the gears. If its too painfully sluggish for you, regear!
12-28-2012 11:27 PM
Seeuoffroad 2012 auto 35" tires. Mileage in town 14.5 on the highway 15.8 but I live in Nebraska. It's flat real flat. With 4.88
12-28-2012 11:18 PM
COStrider
Quote:
Originally Posted by 1sgjeep
This I a topic that has been asked for years. I'm over 50 and on my third jeep. I have a 2010 2dr, I went to 5:13 gears. As most of us know we never stop adding to our jeeps, if you do you should same money and do it once so you never have to worry down the road about what you can or can not handle.
Good point
12-28-2012 07:49 PM
1sgjeep This I a topic that has been asked for years. I'm over 50 and on my third jeep. I have a 2010 2dr, I went to 5:13 gears. As most of us know we never stop adding to our jeeps, if you do you should same money and do it once so you never have to worry down the road about what you can or can not handle.
12-28-2012 04:51 PM
COStrider The shop doing my lift said stock rubi gears have been reported to be better running 35's (compared to stock tires) and another guy working there mechanic turned front counter sales rep runs 37's/4.10/auto/2012 and isn't going to regear
12-28-2012 04:42 PM
GoldenSahara00 This thread

MTH thanks for point out the difference between should and need. I thought I was gona have to do that.

I run 3.07s with 33s. I suppose that is about equivalent to a pre pentagrail w/ 35s and 4.10 or a pentagrail w/35s and 3.73s.

You never NEED to regear, unless you can't reach highway speeds, and even then I wouldn't say "need".

You probably should, with your engine and transmission. I would go with 4.88s if you offroad or 4.56 if you don't. Also depends on the wheel tire combo, the type of driving you do, etc.

Carry on.
12-28-2012 04:41 PM
Vinny13
Quote:
Originally Posted by Daltontj View Post
It's a 07 x
I also have an 07 X model. I run 35's (duratracs) I havent had any issues. I also live in colorado at high altitude im a little sluggish in the mountains but nothing to crazy. I also just wheeled this past saturday. It doesnt mean im not going to re-gear I have plans to do so and throw some lockers in also. I'm just saying you can do it and you will be fine.
12-28-2012 04:39 PM
Duke Hebert 3.73 & 35's with auto works for me. But thats on a 2013, i would think prior to 2012, a gear reduction would be a must! Personally i would look at the 4.88's.
12-28-2012 04:35 PM
Daltontj
Quote:
Originally Posted by DALTONSJK
It is... Anytime I run into someone with it... We are related some how... Lol
Everybody asks me if I'm related to the qb Andy dalton. I'm we are literally look alot alike and same and height and everything
12-28-2012 09:05 AM
bo9roadking
Quote:
Originally Posted by DALTONSJK View Post
did it make gas mileage worse..
I would guess that gas mileage with 4.88 gears would improve for in town driving, but the mileage would be the same or worse on the highway because of the higher rpms at highway speeds.

I had 4.10 gears, but I decided to get beefier axles with 4.56 gears. I'll pick up my JK with the new axles and gears this afternoon, so I'll find out how the new gears work shortly. The 4.10 gears were ok with 35" tires, but not optimal with the added weight from bumpers, sports cage, skids, sliders, winch, beadlocks, ect.
12-28-2012 07:26 AM
DALTONSJK
Quote:
Originally Posted by Seeuoffroad View Post
Your right Dalton it works its not bad. But the 4.88 just flipping rock. Would have left my 3.73 but I installed ARB lockers and thought might as well do the R&P. I'm glad I did. Big difference.
did it make gas mileage worse..
12-28-2012 07:24 AM
DALTONSJK It is... Anytime I run into someone with it... We are related some how... Lol
12-28-2012 04:25 AM
Daltontj
Quote:
Originally Posted by DALTONSJK
Hey... My last name is Dalton too.... I have 35s with 3:73s... And procal.... Works good for me
Hahaha I've found it's a pretty rare last name!!
12-27-2012 09:11 PM
Seeuoffroad Your right Dalton it works its not bad. But the 4.88 just flipping rock. Would have left my 3.73 but I installed ARB lockers and thought might as well do the R&P. I'm glad I did. Big difference.
12-27-2012 08:44 PM
DALTONSJK Hey... My last name is Dalton too.... I have 35s with 3:73s... And procal.... Works good for me
12-27-2012 07:01 PM
Seeuoffroad May as well get the programmer. You'll need that if you change gears anyway.
12-27-2012 05:13 PM
XTRyan
Quote:
Originally Posted by Daltontj View Post
When I purchase my new wheels I'm looking to upgrade to 35' tires and I'm not sure if regearing is need. Any help would be appreciated
Daltontj,

Personally I think that 4.10s would be prefect with the manual and 35s. It's a good all around gear. You should get MPGs on the street still and on the trail be able to drive over almost anything reasonable.

We carry a ton of options for gears for your JK. Also hit me up for the forums discount code for the best price around. Also free shipping on orders over $75.

Good luck with whatever gears you choose! Can't wait to hear how they work out for you.

Phil
12-27-2012 04:59 PM
robdizzle Mine does the same thing. So im thinking i should get a programmer first and see if that helps at all. I figured that way i could at least calibrate the spedo for my 35's.
12-27-2012 03:40 PM
Sasquatchewan I turn of the overdrive it's cheeper than a regear lol
12-27-2012 01:46 PM
kjeeper10 Mmmm 4:88's

My programmer makes it tolerable. Def noticing more loss in power as weight is added.
12-27-2012 01:43 PM
BeyondYourFrontDoor 09 Rubi with 35's.... 6 speed... definitely doggy... any type of moderate 4 wheeling requires 4-low now. I am in very hilly terrain...

Not unbearable... but close for me.
12-27-2012 01:42 PM
RKracing
Quote:
Originally Posted by Lucy Brown View Post
Thats nonsense. 4.10's are just about perfect with 35's.

Now that is double nonsense ......We have 2 Rubi's that came with 4.10's and now with 35" tires...... and yes you can drive it with 4.10 but it drives a whole lot better with 4.88's.
12-27-2012 01:40 PM
sjchoueiry
Quote:
Originally Posted by Daltontj View Post
When I purchase my new wheels I'm looking to upgrade to 35' tires and I'm not sure if regearing is need. Any help would be appreciated
check this thread Anyone with 2012 JK, lift & 35" tires? on this forum.
It has some good info on this subject.
12-27-2012 01:28 PM
panthermark
Quote:
Originally Posted by doclouie View Post
Yes. 3.73 or 4.10 is not good enough for 35s unless you really like it to be a dog.
Depends on the year (engine and tranny).

The OP has an 07 manual...so he probably should re-gear. But on a 2012 or 2013...especially with the 5 speed auto...you can "get by" with 3.73's, and 4.10's are near perfect unless you live in the hills.
12-27-2012 01:23 PM
krawzdogg 2013 JK Manual...35's with 3.73...only complaint is on the highway with hilly terrain...have to switch between 5th and 6th often, considering regearing, but my gas mileage has been around 17mpg around town.
12-23-2012 08:14 AM
Seeuoffroad 2012 JKU Auto.... I have 35's and did 4.88 it's awesome!! Didn't notice a big difference driving around town. But out on the highway and in low gear crawling big difference. Gas mileage also improved.
12-23-2012 08:03 AM
RUBI13 I have a 2013, Auto with 373's and 35's. I am swicthing to either 410 or 456's. 373's shift out of overdrive too much on the highway, especially on hilly terrain.
12-23-2012 07:34 AM
Lucy Brown
Quote:
Originally Posted by doclouie View Post
Yes. 3.73 or 4.10 is not good enough for 35s unless you really like it to be a dog.
Thats nonsense. 4.10's are just about perfect with 35's.
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