ongie84@yahoo.com

Hi i just bought a 2009 jeep wrangler with 25,000km on it
I run with 285/55/20
With stock gears
Then added an exhaust
Now is 10mpg or 1liter/4km
Now i ordered k&n drop
In and a throttle body spacer
And a jet performance module stage 2
...........
Im looking for a flashpaq and a sprintbooster to go with it if someone can tell me sprint will help
Or i dont need it since im buying a flashpaq?
Problem is im from philippines
I order everything from u.s. and cost me alot for shipping.......
And what gear ratio i need if i change tires to 305/55/20?
Because ill be ordering one
And i need a dana30/dana44 right?
Help is kindly appreciated

aldaman

Does your JK have a manual or Auto transmission? Majority choose 4.88s for the manual & 5.13s for the autos (when running 35s). 4.56 or 4.88s (when running 33s). For me since you are in the PI, I would choose 5.13s regardless with the type of trans you have. That gearing would work well for the PI. Also depending if your stock gearing is 3.21s you may need to get a carrier when you change your gearing. If you have 3.73s a carrier is not needed. My 2008 was an automatic and I ran 33" & 35" tires on 5.13 gearing and I loved both combos....

Yes Dana 30/44 when you choose the gears

All you would need is the flashpaq. It has features to eliminate that throttle lag, ability to calibrate your speedometer / trans with your new gearing, give you some added HP & Torque, etc...Whereas the sprint booster will just eliminate the lag but doesn't offer anything else for that steep of a price...

aldaman

ongie84@yahoo.com

Thanks aldaman... I have an auto. But 305/55/20 is only 34 i guess? But 5.13 will so i have the option to use bigger tires on my 17's
Oh no any idea how much is that carrier i need? The problem is so expensive to ahip that heavy metal haha
And how do i suppose to chek my gears? If its 3.21 or 3.73?

ongie84@yahoo.com

On your 33 or 35 with 5.13s can uou get 12mpg in city?
Because right now im so disapoint having 10mpg in city sometimes 9mpg with my 285/55/20? I guess im running 3.21s because if 3.71s wont be this bad?
Can see what do i have gears in flashpaq?

OH9JK

https://www.jk-forum.com/forums/stoc...9/#post1536571

aldaman

You can use the link that OH9JK posted. Other then that you could always email Chrysler or have your dealer get you the build sheet for your Jeep. Lastly, did you buy your JK used or new? If new your gearing info should be on your window sticker.

The carriers usually run ~$60+ each......

ongie84@yahoo.com

I bought a slighty used jeep with a 15k miles or 24k km on it ill try that method tom

ongie84@yahoo.com

Hi aldaman
Why is it a friend of mine telling me i need to buy a dana 44 front and rear?
Because i have the rubicon sticker on my hood?
That model is a dana 44 front/rear?

nthinuf

Your first post indicated a non-rubicon with a d30/d44?

Since none of us are there to actually see which model you have ... Do you have buttons in the lower-center dash panel to turn lockers on and off? A button to disconnect the swaybar?
If you 'do' have a rubicon, then yes, you have a d44 in the front, and a d44 in the rear. (though it is a different d44 rear than on the non-rubi models)

As far as ordering gears goes, no real difference. Just order 'JK Rubicon' gears, or 'JK non-rubicon' gears.
This page would be an example. They clearly show rubicon gears and non-rubicon gears.
Package Deals - Gears & Lockers - Drive Train

For the ratio, depends on preference, usage, transmission, year, added weight, tire size, location, etc, etc. I would suggest that you open the FAQ's stickied right to the top of this modified section, scroll to the Drivetrain section, and plug some numbers into the charts. After you get an idea of the various ratios, start looking through the other 5,000 threads talking about what ratio is best.

ongie84@yahoo.com

Thank you nthinuf
Yup i have the locker switch and the swaybar switch
Good i have d44 front and rear.
Im having hardtime checking my gears since aldaman told me if i have the 3.21 then i need to buy the gear carrier. But if i have the 3.71 i dont need the carrier.
Hhhmmmmmm thanks guys
This forum is so helpful
After i bought unecessary stuff