06 tj gearing - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-21-2016, 07:07 PM
Thread Starter
  #1
Newb
 
Join Date: Mar 2016
Posts: 2
06 tj gearing

Hi, I recently lifted my 06 tj to a rc 3.25" suspension lift with 33s and 15" steel wheels. Took it for a ride today and noticed it didn't have all the power it used too. It's a 4.0 6cyl 6speed manual trans, don't know the gear ratios but I was wondering what else I have to do. Should I regear it? It should it been fine on stock gearing.
Thanks for the help

Derrek07 is offline   Quote
Old 03-21-2016, 08:25 PM   #2
Newb
 
Join Date: May 2015
Posts: 7
I'm running 4.56 with my 33s but I have a 5 speed. I love them, but most go with 4.88s with that ratio. Either check your diff for the gear ratio or simply send your vin to jeep and they'll send it back. One other option is to google it and pull up a chart with Rpms, tire size, and transmission. Should be easy to find and then go drive and check your speed.

meareskm is offline   Quote
Old 03-22-2016, 05:21 AM   #3
HOHOHO,MERRY CHRISTMAS

5-Year WF Supporting Member
WF Lifetime Member
::WF Moderator::
 
Old Dogger's Avatar
 
Join Date: May 2012
Location: The cold, snowy, windy North Pole.
Posts: 26,332
I moved your Thread to the TJ Tech Forum. You should receive more responds in this Forum.
__________________
1974 CJ5, 2003 TJ, 2013 2 door Black Rubicon, auto, with 4.10 ratio.
Shaking at 40-70 MPH, Read this!!!

The Mighty Grizzly is not concerned,
with
the needs of the Hunter....


Click here and become a WF supporting Member
Old Dogger is online now   Quote
Sponsored Links
Advertisement
 
Old 03-22-2016, 08:12 AM   #4
Jeeper
 
CzerOne's Avatar
 
Join Date: Feb 2016
Location: Bedford, NS
Posts: 446
I would go with 4.56. the 6 speed 6th gear is only slightly different than the 5th gear in the 5 speed. (0.84 6th in 6 speed vs 0.79 5th in 5 speed). General rule of thumb for me in standard TJs is 4.10s are for 31s, 4.56 for 33s, 4.88 for 35s. But bare in mind that this is my own preferred ratios. My current TJ has 4.10s on 33s with a 5 speed and I find the RPMs in my preferred gears are just a little too low. 4.56 is right where I want it to be. If you do a lot of highway driving, I recommend 4.56. If you rarely see the highway, go 4.88. It will give you more low end grunt, and with the 6 speed you have an added gear for options when in town.
__________________
2003 TJ Sport
BDS|WARN|JKS|MOTIVE|COOPER|PROCOMP|BESTOP|TERAFLEX |SMITTYBILT|TOMWOODS|G2|RUGGEDRIDGE
CzerOne is offline   Quote
Old 03-22-2016, 09:06 AM
Thread Starter
  #5
Newb
 
Join Date: Mar 2016
Posts: 2
Thank you I appreciate it guys
Derrek07 is offline   Quote
Old 03-22-2016, 10:59 AM   #6
Newb
 
jbrubicon's Avatar
 
Join Date: Sep 2012
Location: Bishop, CA
Posts: 5
Quote:
Originally Posted by meareskm View Post
I'm running 4.56 with my 33s but I have a 5 speed. I love them, but most go with 4.88s with that ratio. Either check your diff for the gear ratio or simply send your vin to jeep and they'll send it back. One other option is to google it and pull up a chart with Rpms, tire size, and transmission. Should be easy to find and then go drive and check your speed.

Follow the link below and enter your VIN #. It will give you a build sheet for your Jeep, including the axle ratio.

Support Home Page
__________________
Sometimes too much to drink is not enough!
jbrubicon is offline   Quote
Old 03-22-2016, 11:06 AM   #7
Mostly old school..!

5-Year WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Now searching for rocks in Sumner, TX
Posts: 12,149
I would gear the 4.0L and 6 speed manual at 4.56.
__________________
Dennis
Water Dog is offline   Quote
Old 03-22-2016, 01:15 PM   #8
Jeeper
 
Join Date: Apr 2013
Posts: 12,991
I would do 4.56 with 5 SPd but with 6 speed ultralight low 1st and little overdrive i.e. less overdrive that either 5 SPd I would do 4.11 on 6 SPd 4.0
Digger84 is online now   Quote
Old 03-22-2016, 01:19 PM   #9
Jeeper
 
Join Date: Apr 2013
Posts: 12,991
Above assuming 33 inch tires
Digger84 is online now   Quote
Old 06-18-2016, 04:48 PM   #10
Jeeper
 
GRock's Avatar
 
Join Date: May 2011
Location: St. Louis
Posts: 137
My '06 has the stock 3:07 in the rear. Im assuming its same in front. I was surprised to find that it has 27.7" tires on it from the factory! A po put 31's on it and after reading this thread, it sounds like I need a regear. I hear the Rubicons had 31's with a 4:10 gear ratio. 3:07 to 4:10 sounds like a big jump in rpms to me! Just to make sure, we're talking about both axles right? It seems that with different gear ratios, you would run into problems when in 4 wheel drive.
GRock is offline   Quote
Old 06-18-2016, 05:47 PM   #11
Jeeper
 
Rev_Don's Avatar
 
Join Date: Nov 2013
Location: Warren, Mi
Posts: 173
Quote:
Originally Posted by jbrubicon View Post
Follow the link below and enter your VIN #. It will give you a build sheet for your Jeep, including the axle ratio.

Support Home Page

That's pretty cool, I've been looking for something like that to find out what gears I have. Just what I was afraid of, 3.07's. Says mine came from the factory with 225's, but it already had 235's on it when I bought it. I don't plan to go big, but I'd like 31's once these wear out. Guess I'll be saving up for gears before I worry about 31's...
__________________




Waylon's guitar had that sound
Rev_Don is offline   Quote
Old 06-19-2016, 12:44 AM   #12
Jeeper
 
LittleBunny's Avatar
 
Join Date: Feb 2016
Posts: 118
Quote:
Originally Posted by Rev_Don View Post
That's pretty cool, I've been looking for something like that to find out what gears I have. Just what I was afraid of, 3.07's. Says mine came from the factory with 225's, but it already had 235's on it when I bought it. I don't plan to go big, but I'd like 31's once these wear out. Guess I'll be saving up for gears before I worry about 31's...
The stock sizes for the older wranglers, like you mentioned, are 215/75R15 and 225/75R15 which are basically 28's

I had 31's with the 3.07 factory gearing for a bit and it may not be completely unbearable for you, but you can count on your top gear being close to useless on the highway past 70MPH. You'll also lose a little low gear pep.... I went to 235/75R15 (29's) like you and it drives much more to my preference performance-wise on the street with the stock gearing.

Again, 31's may seem fine to you and since regearing is an expense beyond tires you may want to try them out on stock gearing before dropping the coin to regear. Just my 2c
__________________
PSC XC DeFenders (- Flare), JW Speaker 8700 Evo II, LED Interior Lighting, Fog Light Delete, JKS 1.25" BL, Brown Dog's 1" MML, Silver 15x8 Ecco Wheels, 29" General Grabbers
Captains [Build] Log
LittleBunny is offline   Quote
Old 06-19-2016, 10:30 AM   #13
Jeeper
 
GRock's Avatar
 
Join Date: May 2011
Location: St. Louis
Posts: 137
Quote:
Originally Posted by LittleBunny View Post

I had 31's with the 3.07 factory gearing for a bit and it may not be completely unbearable for you, but you can count on your top gear being close to useless on the highway past 70MPH. You'll also lose a little low gear pep.... I went to 235/75R15 (29's) like you and it drives much more to my preference performance-wise on the street with the stock gearing.
This is EXACTLY what I'm experiencing! Get past 75mph and the Jeeps saying "What the hell are you doing?" I just replaced my 31s within the month, now I'm thinking maybe I should have looked at 29s...
Being my first Jeep and have no experience with other jeeps, I don't have any idea what is "normal".
GRock is offline   Quote
Old 06-19-2016, 05:30 PM   #14
Jeeper
 
hornetmech's Avatar
 
Join Date: May 2014
Posts: 84
If you think some day going to 35" tires. Go to 4:88 now, that's what I run. 4.5 inch rubicon express long arm with 35" and 4:88 gears. 05 unlimited 6-speed manual
hornetmech is offline   Quote
Old 06-19-2016, 05:32 PM   #15
Jeeper
 
hornetmech's Avatar
 
Join Date: May 2014
Posts: 84
Quote:
Originally Posted by hornetmech View Post
If you think some day going to 35" tires. Go to 4:88 now, that's what I run. 4.5 inch rubicon express long arm with 35" and 4:88 gears. 05 unlimited 6-speed manual
At freeway speeds the RPMs are high 300 +or-
hornetmech is offline   Quote
Old 06-19-2016, 05:33 PM   #16
Jeeper
 
hornetmech's Avatar
 
Join Date: May 2014
Posts: 84
Quote:
Originally Posted by hornetmech View Post
If you think some day going to 35" tires. Go to 4:88 now, that's what I run. 4.5 inch rubicon express long arm with 35" and 4:88 gears. 05 unlimited 6-speed manual
at freeway speeds the RPMs are high 3000 +or -

hornetmech is offline   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off






All times are GMT -5. The time now is 09:32 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.1
User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.

Jeep, Wrangler, Liberty, Wagoneer, Cherokee, Gladiator, Mopar and Grand Cherokee are copyrighted and trademarked to FCA US LLC.
Wranglerforum.com is not in any way associated with FCA US LLC.