Gear ratio with 35's on JKU - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > JK Wrangler Technical Forum > Gear ratio with 35's on JKU

XJ Rail Sale!The Ruffstuff NOT Universal 4 Link Kit!Vanco Big Brake Kit Promotion!

Reply
Unread 08-20-2013, 11:05 AM   #1
csm41
Registered User
1999 TJ Wrangler 
 
Join Date: Apr 2011
Location: Warren, Ohio
Posts: 351
Gear ratio with 35's on JKU

What is the general consensus on the best gears in conjunction with 35's on the 2013 Unlimited? I just ordered a Rock Krawler 2.5" lift and some 35 x12.50's on Method Racing 17" wheels. I was thinking either 4.88 or 4.56's. I have 4.56 on my TJ with 35's, but that is with a 4.0 and an RH32 3 speed auto. Anyone with experience on the best all around set up?

csm41 is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 12:51 PM   #2
RockyClymer
RedRock4Wheeler
 
RockyClymer's Avatar
2008 JK Wrangler 
 
Join Date: Apr 2008
Location: Colorado
Posts: 4,487
Auto or manual? See FAQ for starters and then let us know which you choose. Suggested ratio is different for auto vs manual.
__________________
08 JK 23S - Colorado Jeep Club No. 204
Too much to list - see my profile for details on build
NRA Life member
"It takes a special kind of stupid to believe criminals will follow gun laws."
I do not consider myself a smartass. I point out the obvious, search for the truth, and speak fluent sarcasm. I am, by experience, an accomplished curmudgeon.
RockyClymer is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 12:59 PM   #3
brianjw
Registered User
2012 JK Wrangler 
 
Join Date: Apr 2012
Location: Hillsboro, Or
Posts: 1,364
Your profile says Ohio. A lot of people are very happy with 4.10s in flat terrain on 2012+ with 35s. Since you're spending the money to regear, I would probably go for 4.56 gearing. Should be plenty low enough. Since you have a lot of higher speed limits up there I wouldn't want go too low and make the freeway miserable.
brianjw is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 01:03 PM   #4
Astennis1
Registered User
2013 JK Wrangler 
 
Join Date: Oct 2012
Location: Ocean Springs, Mississippi
Posts: 209
I have 4.10s 35s with a 6spd its fine, but if I were to pay money to upgrade from any less I would go to 4.56. Can't say much for the Auto.
__________________
I LOVE LAMP

13 JKUR
Astennis1 is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 01:03 PM   #5
aznjeep
Senior Member
 
aznjeep's Avatar
2014 WK 
 
Join Date: Apr 2005
Location: Albuquerque, NM
Posts: 515
Scroll down to find the ratio charts for 2012+ http://www.jeepforum.com/forum/f96/h...35/index3.html
__________________
-Ken
'13 JKUR 10A "Oscar" Build Thread: http://www.jeepforum.com/forum/f96/2.../#post15712025
'10 JKUR "Saffi" (sold) Build Thread: http://www.jeepforum.com/forum/f96/m...saffi-1183819/
'99 TJ "L'il Pepper" (sold)
aznjeep is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 02:52 PM   #6
csm41
Registered User
1999 TJ Wrangler 
 
Join Date: Apr 2011
Location: Warren, Ohio
Posts: 351
Quote:
Originally Posted by RockyClymer View Post
Auto or manual? See FAQ for starters and then let us know which you choose. Suggested ratio is different for auto vs manual.
My JKU is an auto and a 3.6 Pentastar. I had looked at the FAQ gear chart previously, but the chart was for the 3.8 litre engine and the old tranny combo. Even if I was to go by that particular chart, my stock 32's are under geared with my stock 3.21 gears to begin with. I really don't trust the chart, which is why I was asking for real world experience. Although I live in NE Ohio, I travel a lot, often times in mountains. My TJ is for more heavy duty wheeling, but this new Unlimited is going to be my daily driver/camping/light trail rig. My plan is to regear and add Detroit Trutracs front and rear. When the Unlimited gets older, I plan on going to larger (37-40's) tires and axles and give the TJ to my kid.
csm41 is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 02:56 PM   #7
HK_Runner
Registered User
2014 JK Wrangler 
 
Join Date: May 2013
Location: Littleton, Colorado
Posts: 42
4.56 would be perfect but for flatlanders, the stock Rubi 4.10 will work quite well. Here in Colorado, I curse the 4.10 only when going up the mountain passes and highways.
HK_Runner is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 02:57 PM   #8
csm41
Registered User
1999 TJ Wrangler 
 
Join Date: Apr 2011
Location: Warren, Ohio
Posts: 351
Quote:
Originally Posted by aznjeep View Post
Scroll down to find the ratio charts for 2012+ http://www.jeepforum.com/forum/f96/h...35/index3.html
Thanks for the link. I just looked at the newer chart for my year Jeep, so I am back to my original thought of 4.88 or 4.56? I will just have to decide how high of RPM's I want to run on the freeway.
csm41 is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 03:00 PM   #9
HK_Runner
Registered User
2014 JK Wrangler 
 
Join Date: May 2013
Location: Littleton, Colorado
Posts: 42
If not towing, go 4.56. I would not want to run around 3,000 RPM on the highway at 70 for any length of time.
HK_Runner is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 03:09 PM   #10
csm41
Registered User
1999 TJ Wrangler 
 
Join Date: Apr 2011
Location: Warren, Ohio
Posts: 351
This is good info. My Jeep buddies and I are planning a Colorado/Moab trip for early next year. 4.88 may be the best option for all around use. I still can't decide if I want to take the JKU or the TJ
csm41 is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 06:40 PM   #11
SLADE
Registered User
2004 TJ Wrangler 
 
Join Date: Jul 2010
Location: 26537
Posts: 1,922
4.56's for the highway, flat land, and not towing.

4.88's for 2 lane, mountains, and towing.
__________________
2014 Wrangler JKU
2013 Wrangler JK
2004 Wrangler TJ on LEAFS
2001 Dodge Ram 2500
SLADE is offline   Reply With Quote Quick reply to this message
Unread 08-20-2013, 07:25 PM   #12
rha600
Registered User
2013 JK Wrangler 
 
Join Date: Apr 2011
Location: hollywood, florida
Posts: 934
I have 35's and 4.10s here in Florida and it's fine, but if it were hilly I can see the 4.56s or 4.88s being a better choice.
rha600 is offline   Reply With Quote Quick reply to this message
Unread 08-21-2013, 02:56 PM   #13
csm41
Registered User
1999 TJ Wrangler 
 
Join Date: Apr 2011
Location: Warren, Ohio
Posts: 351
I will probably opt for the 4.88 gears...
csm41 is offline   Reply With Quote Quick reply to this message
Unread 08-21-2013, 04:15 PM   #14
04WJfreedom
Registered User
2012 JK Wrangler 
 
Join Date: Mar 2007
Location: Manchester NH and Portland Maine, NH and ME
Posts: 629
Quote:
Originally Posted by csm41
I will probably opt for the 4.88 gears...
Good choice I put in 4:88's last week and they are perfect for all the hills around here in New England!
__________________
2012 JK Unlimited Sahara
Rock Krawler 3.5" X-Factor MID arm lift
35x12.5x17 BFG KM2
4:88 Yukon gears
KOR Drive shafts
04WJfreedom is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Thread Tools






Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.