My Jeep has POWER - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > JK Jeep Wrangler Forum > JK General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 03-21-2012, 07:57 PM   #1
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
My Jeep has POWER

When I first got my 2011 JKU with 3.73 gears and automatic..... I thought - this is just fine. I don't know why everyone complains about the lack of power.

Then I started adding steel. Roof rack/floor kit/skid plates/front steel bumper and winch... lifted and duratrac 285's.

The drive home from the valley (SLC) to Silver Fork at 8000' wasn't so easy anymore. Then came a trip (fully loaded for camping and work (photography)) from Utah > Death Valley > California and back. 40 mph headwinds. Big hills (many would call them mountains).... and upon return I made an appointment at TeraFlex Plus in Murray, Utah.....

4.88 gears/front ARB air lockers/new dif covers

I spent a couple of days driving 20 miles..... letting it sit to cool the diff fluid..... drive 20 miles.... and today got to go on the freeway.... didn't push it, but I am so impressed. The added torque accesses the power the engine has soooooooo much better. And the ride back up the canyon... well, it was FUN AND I'm seeing an increase in gas mileage by at least 2 mpg... mostly city street driving. A bit more breaking in (well, just taking it easy on the freeway for a bit) then I'll be changing out the gear oil at 500 miles.... I am thrilled. It's more than I'd hoped for.

Oh.... and now I have onboard air... no more dragging out the Viair... hooking it up to the battery, moving it around the jeep. I just have to plug in a hose to a coupler ... turn the switch on.... and voile' I've got air!

I'm so happy I could just

Just shows to go ya..... they are so undergeared from the factory... and then we add weight and or larger tires....

Thanks to all that led me down this path

__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-21-2012, 08:01 PM   #2
Jeeper
 
4fit's Avatar
 
Join Date: Dec 2010
Location: Graham, NC
Posts: 2,304
Nice. Congrats!

__________________
-Jeff-
'11 JKU Sport - TF Leveling Kit - 16" Strike 5s on 33s
4fit is offline   Quote Quick Reply
Old 03-21-2012, 08:01 PM   #3
Jeeper

WF Supporting Member
 
kbwwolf's Avatar
 
Join Date: Sep 2011
Location: Wisconsin
Posts: 12,179
Nice!

That's one thing I'm really looking forward to...although mine's not really all that bad. Just on hills and on really windy days (which we've had a lot of, lately.)

You sound like somebody who just bought a new Jeep.
__________________


"What we see depends mainly on what we look for."
—John Lubbock
kbwwolf is offline   Quote Quick Reply
Old 03-21-2012, 08:05 PM   #4
Jeeper
 
baytownbert's Avatar
 
Join Date: Apr 2011
Posts: 468
Nevermind: What exactly does the Duratrac 185 equate to in inches please?

I think you meant 285 or 33". I get it.
baytownbert is offline   Quote Quick Reply
Old 03-21-2012, 08:09 PM   #5
Jeeper
 
rics1997's Avatar
 
Join Date: Oct 2010
Location: Bristol, Tn
Posts: 4,764
Isn't it a great feeling. You just don't know how much better it actually is until you do it
__________________
2010 Dark Charcoal Pearl Jeep Wrangler Sport S Automatic
4.88 Yukon w/Trac-Lok rear and Eaton ELocker Front - Synergy Gussets - B&M 70264 Trans Cooler
BDS 3" lift - BDS Fox 2.0 Racing Shocks
XHD front Bumper - Trektop NX - Goodyear MT/R w/Kevlar 35X12.5X15 on MB Chaos 5 Wheels - Thrush Turbo Muffler

Become a WranglerForum Supporting Member!
rics1997 is offline   Quote Quick Reply
Old 03-21-2012, 08:12 PM   #6
Jeeper
 
4fit's Avatar
 
Join Date: Dec 2010
Location: Graham, NC
Posts: 2,304
Quote:
Originally Posted by baytownbert
What exactly does the Duratrac 185 equate to in inches please?
Pretty sure that's supposed to be 285. Most likely a 285/75/16 or 285/70/17. Either way, it would be roughly 33x11.
__________________
-Jeff-
'11 JKU Sport - TF Leveling Kit - 16" Strike 5s on 33s
4fit is offline   Quote Quick Reply
Old 03-21-2012, 08:25 PM   #7
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Yes..... I'm an idiot just so happy..... fingers flying on the keyboard incorrectly but that's ok.... too stoked to worry... 285/70/17

__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-21-2012, 08:39 PM   #8
Jeeper
 
Yella's Avatar
 
Join Date: Jul 2011
Location: St. Peters, Missouri
Posts: 747
Quote:
Originally Posted by CG3 View Post
I'm so happy I could just

Just shows to go ya..... they are so undergeared from the factory... and then we add weight and or larger tires....

Thanks for starting this thread.
Oh I'm already convinced for regearing.
I'm just waiting for the proper timing ($$$).
A thread like this just keeps me focused.
__________________
____________________

2008 JK Sport
2014 JKU Sahara
Yella is offline   Quote Quick Reply
Old 03-21-2012, 08:42 PM   #9
ESP
Jeeper
 
ESP's Avatar
 
Join Date: Jun 2010
Location: NC
Posts: 11,503
Ok throwing in one question and hijacking this. If I regeared to 4.88 right now with "the combo" could I expect better MPG and or all the other glories everyone talks about?

For the record my eco is around 18 in city as it is but I don't really have much use of 6th anymore. I could re-gear in preparation for the 35x12.5R15s but is it better to wait until there on I guess?
__________________
98 XJ 02 TJ 10 JK 13 JK

2013 JK - Lifted w/ 35s - Bilstein 5100s - Monster TB - Chopped Flares - Can't Keep It Clean
ESP is offline   Quote Quick Reply
Old 03-21-2012, 08:50 PM   #10
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,825


One of my next "to do's"
kjeeper10 is online now   Quote Quick Reply
Old 03-21-2012, 09:16 PM   #11
Newb
 
Join Date: Jan 2012
Posts: 5
A few questions here also...
Approximately how much to re-gear?
Could it be done by the dealer?
Would you want it done by the dealer?
What would that do to the warranty?

I just got my jeep 1-1/2 month ago and haven't had a chance to pull anything with it yet but we have a popup camper that we plan on getting a lot of use out of this summer so I would rather not be unpleasantly surprised when it's having a hard time pulling a rather small camper. By the way, I have the 3.73 gears in mine.
Thanks
kayotte is offline   Quote Quick Reply
Old 03-21-2012, 09:22 PM   #12
ESP
Jeeper
 
ESP's Avatar
 
Join Date: Jun 2010
Location: NC
Posts: 11,503
Quote:
Originally Posted by kayotte View Post
A few questions here also...
Approximately how much to re-gear?
Could it be done by the dealer?
Would you want it done by the dealer?
What would that do to the warranty?

I just got my jeep 1-1/2 month ago and haven't had a chance to pull anything with it yet but we have a popup camper that we plan on getting a lot of use out of this summer so I would rather not be unpleasantly surprised when it's having a hard time pulling a rather small camper. By the way, I have the 3.73 gears in mine.
Thanks
If you bought a 12 and have the 3.73 I don't think you need to worry about towing with it. You can tow with 3.21s and pre 12s but you'll be better off if you have the 12.
__________________
98 XJ 02 TJ 10 JK 13 JK

2013 JK - Lifted w/ 35s - Bilstein 5100s - Monster TB - Chopped Flares - Can't Keep It Clean
ESP is offline   Quote Quick Reply
Old 03-21-2012, 09:23 PM   #13
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,825
Quote:
Originally Posted by kayotte
A few questions here also...

Approximately how much to re-gear? $1500-$2009

Could it be done by the dealer? $5789
I don't think so anyways.

Would you want it done by the dealer? Nope

What would that do to the warranty? Nothing except new gears won't be covered.

I just got my jeep 1-1/2 month ago and haven't had a chance to pull anything with it yet but we have a popup camper that we plan on getting a lot of use out of this summer so I would rather not be unpleasantly surprised when it's having a hard time pulling a rather small camper. By the way, I have the 3.73 gears in mine.
Thanks
Do it
kjeeper10 is online now   Quote Quick Reply
Old 03-21-2012, 09:24 PM   #14
..shall not be infringed!

WF Supporting Member
 
Up Hill Bill's Avatar
 
Join Date: Jun 2011
Location: Up the hill, CA Northcoast
Posts: 4,502
OK. Time for Jimbo to come out and strut!

While I have a 2012, I've often chimed in that the 3.8L isn't under powered. It's a great engine. It's just badly under-geared, especially with the auto tranny.

Glad you are happy with your new found power and MPG!
__________________
2012 JKU Rubicon
Sahara Tan
Auto
3.73


Up Hill Bill
Up Hill Bill is online now   Quote Quick Reply
Old 03-21-2012, 09:37 PM   #15
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Quote:
Originally Posted by kayotte View Post
A few questions here also...
Approximately how much to re-gear?
Could it be done by the dealer?
Would you want it done by the dealer?
What would that do to the warranty?

I just got my jeep 1-1/2 month ago and haven't had a chance to pull anything with it yet but we have a popup camper that we plan on getting a lot of use out of this summer so I would rather not be unpleasantly surprised when it's having a hard time pulling a rather small camper. By the way, I have the 3.73 gears in mine.
Thanks
TerraFlex Plus charged me $1500 for the re-gear. It would have been $200 dollars more each diff if new bearings were needed. They weren't.
I would NOT have it done by the dealer. They don't do it enough. You want someone that does it a LOT. It is after all, major surgery. I was at my dealer today, and they didn't even realize the gears needed to be work hardened after install.

Warranty? Well, that depends on your dealer. I'd ask them. It could give them an easy out if they wanted... My dealer said no problem, as they have been re-gearing more and more (yes - and didn't know about breaking them in properly)... The gears obviously won't be under warranty though... You'd need to go to the folks that installed them for that...


BUT - they also told me the '12's are re-geared by computer, not actually changing out the physical gears... are they stoned or is this correct? Anyone know?
__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-21-2012, 09:47 PM   #16
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,825
Quote:
Originally Posted by CG3

TerraFlex Plus charged me $1500 for the re-gear. It would have been $200 dollars more each diff if new bearings were needed. They weren't.
I would NOT have it done by the dealer. They don't do it enough. You want someone that does it a LOT. It is after all, major surgery. I was at my dealer today, and they didn't even realize the gears needed to be work hardened after install.

Warranty? Well, that depends on your dealer. I'd ask them. It could give them an easy out if they wanted... My dealer said no problem, as they have been re-gearing more and more (yes - and didn't know about breaking them in properly)... The gears obviously won't be under warranty though... You'd need to go to the folks that installed them for that...

BUT - they also told me the '12's are re-geared by computer, not actually changing out the physical gears... are they stoned or is this correct? Anyone know?
Regeared by computer?

That is not possible lol

They could change shift points about it
kjeeper10 is online now   Quote Quick Reply
Old 03-21-2012, 09:51 PM   #17
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Quote:
Originally Posted by kjeeper10 View Post
Regeared by computer?

That is not possible lol

They could change shift points about it
I thought they were crazy.... but didn't want to start anything... not worth it since I really had no idea
__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-21-2012, 09:56 PM   #18
MallCrawler

WF Supporting Member
::WF Moderator::
 
kjeeper10's Avatar
 
Join Date: Feb 2011
Location: Connecticut
Posts: 35,825
Quote:
Originally Posted by CG3

I thought they were crazy.... but didn't want to start anything... not worth it since I really had no idea
I could be wrong here?

I don't think a jeep dealer could/will install anything other than 4.10's anyways.
kjeeper10 is online now   Quote Quick Reply
Old 03-21-2012, 10:06 PM   #19
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Quote:
Originally Posted by kjeeper10 View Post
I could be wrong here?

I don't think a jeep dealer could/will install anything other than 4.10's anyways.
Yes... my dealer said they are, and they are quoting $1500.
__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-21-2012, 10:08 PM   #20
Jeeper
 
burton160w's Avatar
 
Join Date: Oct 2009
Location: Underneath my TJ
Posts: 1,639
That's crazy! Keep looking, shouldn't be more than $600 a differential.
__________________
It's got a Willy's body, a Chevy engine, Ford axles, GM transmission, and Dodge steering components... it must be a Wrangler.
burton160w is offline   Quote Quick Reply
Old 03-21-2012, 10:10 PM   #21
ESP
Jeeper
 
ESP's Avatar
 
Join Date: Jun 2010
Location: NC
Posts: 11,503
Quote:
Originally Posted by CG3 View Post
Yes... my dealer said they are, and they are quoting $1500.
He is misspoken or misunderstood or wrong. Point is you cannot re-gear a transmission by just hooking up the jeep to a computer but just in case we are all wrong....we'll what's the name of that program again?
__________________
98 XJ 02 TJ 10 JK 13 JK

2013 JK - Lifted w/ 35s - Bilstein 5100s - Monster TB - Chopped Flares - Can't Keep It Clean
ESP is offline   Quote Quick Reply
Old 03-21-2012, 10:11 PM   #22
Jeeper
 
Casotakar1229's Avatar
 
Join Date: Mar 2012
Posts: 2,214
awesome. glad to see you are thrilled with the new gears! hopefully I'll be joining you with new gears this summer this makes me even more excited to hear such positive reviews.
Casotakar1229 is offline   Quote Quick Reply
Old 03-21-2012, 10:26 PM   #23
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,914
Well CG3, I am truly glad to hear that you're satisfied with the 4.88 gears--thats what this whole program ia all about--

You're the one that will know after a couple trips with your JKU loaded, how the gears perform--

It goes against my ideas for the heavy 4dr, but I'm not driving your jeep and you're the judge and jury--

Good luck-

JIMBO
__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 03-21-2012, 10:41 PM   #24
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Quote:
Originally Posted by burton160w View Post
That's crazy! Keep looking, shouldn't be more than $600 a differential.
Ummmmm.... don't need to keep looking.... already had it done, and not at the dealer and did pay $1500.... and am very happy with the price/job done etc.....

Thanks tho
__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-21-2012, 10:43 PM   #25
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Quote:
Originally Posted by JIMBOX View Post
Well CG3, I am truly glad to hear that you're satisfied with the 4.88 gears--thats what this whole program ia all about--

You're the one that will know after a couple trips with your JKU loaded, how the gears perform--

It goes against my ideas for the heavy 4dr, but I'm not driving your jeep and you're the judge and jury--

Good luck-

JIMBO
Yeppers.... will find out late April.... headed for Moab... camp/shoot/photograph/then teach at a photo symposium

Meanwhile for the everyday stuff..... it's dakine
__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-21-2012, 10:45 PM   #26
CG3
no retreat, no surrender

WF Supporting Member
 
CG3's Avatar
 
Join Date: Jun 2011
Location: Utah/Mexico/California
Posts: 975
Quote:
Originally Posted by ESP View Post
He is misspoken or misunderstood or wrong. Point is you cannot re-gear a transmission by just hooking up the jeep to a computer but just in case we are all wrong....we'll what's the name of that program again?
I think just plain wrong.... I tried to show him the 2012 chart...
c'est la vie'
__________________
Carolyn
CG3 is offline   Quote Quick Reply
Old 03-22-2012, 01:31 PM   #27
Jeeper
 
jsalbre's Avatar
 
Join Date: Mar 2012
Location: Aurora , CO
Posts: 70
Quote:
Originally Posted by CG3 View Post
I think just plain wrong.... I tried to show him the 2012 chart...
c'est la vie'
The '12s are of course regeared by changing out the gears, just like any other vehicle in history.

However, you have to update the computer to know the new gear ratio or it will go into limp home mode.

I'm guessing whoever you talked to at the dealer misinterpreted that information.

jsalbre is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum 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 email address for yourself.
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

Posting Rules
You may post new threads
You may 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can i over ride my 2001 clutch safety switch? krwise TJ General Discussion Forum 28 11-05-2012 06:12 PM
Just bought my first jeep BassCannon General Jeep Discussion 17 04-02-2012 10:51 PM
Jeep disease Jb125motoxxx Off-Topic 11 03-22-2012 03:36 PM
My First Jeep Mjohnson723 WF New Member Check In 10 03-22-2012 07:35 AM
How to adjust the door on a 1995 Jeep Wrangler YJ xxxxxxxxxxxxxxxhiggins24 WF New Member Check In 4 03-22-2012 12:25 AM



Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 06:12 PM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC