What Gears for 33 Auto Tranny - 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 06-06-2011, 01:30 PM   #1
Jeeper
 
Join Date: May 2011
Posts: 60
What Gears for 33 Auto Tranny

what gears should I put on for 33 with auto tran. eventually going to put 35s on but not for a while.

Do I need gears with 33's? main goal is to get more pick up and better gas mpg thanks!

pro3g is offline   Quote Quick Reply
Old 06-06-2011, 01:47 PM   #2
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,916
Read on-


Quote:
Originally Posted by pro3g View Post
what gears should I put on for 33 with auto tran. eventually going to put 35s on but not for a while.

Do I need gears with 33's? main goal is to get more pick up and better gas mpg thanks!
http://www.wranglerforum.com/f33/que...wer-96794.html

http://www.wranglerforum.com/f33/qui...ion-96777.html

http://www.wranglerforum.com/f33/re-...ons-92903.html

That'll keep ya busy-

JIMBO

__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 06-06-2011, 07:13 PM   #3
Ex Navy man
 
rics1997's Avatar
 
Join Date: Oct 2010
Location: Bristol, Tn
Posts: 4,767
5.13's. I went to 4.88 on 32.71's (285/70/17) almost 33's and wish I had done 5.13's now. Not that 4.88 are too bad but when towing....well I wish I went to 5.13's. But the best thing to do is read the above threads that Jimbo posted. A wealth of information on this topic.
__________________
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 06-06-2011, 07:16 PM   #4
Ex Navy man
 
rics1997's Avatar
 
Join Date: Oct 2010
Location: Bristol, Tn
Posts: 4,767
Here is another thread with a lot of charts to help with

http://www.wranglerforum.com/f33/285...ars-89084.html
__________________
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 06-06-2011, 07:33 PM   #5
ESP
Needs stuff..
 
ESP's Avatar
 
Join Date: Jun 2010
Location: NC
Posts: 11,390
I'm rocking 3.21s with 33s and love it but I'm running them on 15" wheels so there is a HUGE up spring weight and rolling resistance difference to consider. I'm not helping right?

Edit: whoops..just saw OP was asking about an auto tranny. Mine's a 6 speed.
ESP is offline   Quote Quick Reply
Old 06-06-2011, 07:35 PM   #6
RIPPed

WF Supporting Member
 
TheHighLow's Avatar
 
Join Date: Mar 2011
Location: Mahwah & Brick, NJ
Posts: 166
i have 4.10s and I am quiet happy with the 285/70/17 combo and I feel that they'll be fine with 295/70/17, mind you I don't tow.
Now if I went with 305's I would be getting 5.13...
TheHighLow is offline   Quote Quick Reply
Old 06-06-2011, 07:37 PM   #7
Jeeper
 
Join Date: May 2011
Posts: 60
Are gears really 2k installed haven't looked into it much but just called a shop and was told 2k for 5.12 gears is that a good price or high ?
pro3g is offline   Quote Quick Reply
Old 06-06-2011, 07:40 PM   #8
Ex Navy man
 
rics1997's Avatar
 
Join Date: Oct 2010
Location: Bristol, Tn
Posts: 4,767
I had the Auto too with 3.73. I thought they were great and couldn't understand what the regear hoopla was about. The only reason I regeared was because I was going to tow a bigger trailer. But I really didn't know what I was missing until after I regeared. It made a huge difference. Knowing what I know now, I would have regeared before any other mod.

Still recommend 5.13
__________________
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 06-06-2011, 07:44 PM   #9
Ex Navy man
 
rics1997's Avatar
 
Join Date: Oct 2010
Location: Bristol, Tn
Posts: 4,767
Quote:
Originally Posted by pro3g View Post
Are gears really 2k installed haven't looked into it much but just called a shop and was told 2k for 5.12 gears is that a good price or high ?

Paid $1500 for mine and they were Yukons (best replacement gears out there) with full installation kits. Different areas do have a price variance but 2K does sound a little high. I would try to look around or go to the shop and see if you can get a better deal. I would let them get the gears and do everything so you can hold them to any problems with warranty. Parts with tax are around $800 and that's the high side for them. Labor guide says 12 hours labor (7 hr front, 5 hours rear) so they are charging $100/hour. Thats too much
__________________
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 06-06-2011, 07:50 PM   #10
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,916
Many things to consider--


Quote:
Originally Posted by pro3g View Post
Are gears really 2k installed haven't looked into it much but just called a shop and was told 2k for 5.12 gears is that a good price or high ?
If the shop buys and installs the gears (YUKON) /w full Master install kits, then warrantys em (with instructions) and you don't have a D30 front diff.--

Then 2K is high-

My price with YUKONS/Dana 44-N Lubelockers in HD D44s / Synergy Ball joints and recheck/fill after 500 miles-if I wanted-was $1958 bucks and that was a little high, but you've gotta consider the rep and quality of the shop that does the work !!

SHould be avg between 1200/1600 bucks--

Good luck

Thanx rics

JIMBO
__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 06-06-2011, 07:57 PM   #11
Jeeper
 
Maddawg's Avatar
 
Join Date: May 2011
Location: Raleigh/Garner/Clayton
Posts: 269
Would i just need the gears them self ?

My rubi has lockers and 44 dana's
__________________
2013 Chevy Tahoe 4x4
Maddawg is offline   Quote Quick Reply
Old 06-06-2011, 08:03 PM   #12
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,916
Have you ever setup a D44 set of gears ??


Quote:
Originally Posted by Maddawg View Post
Would i just need the gears them self ?

My rubi has lockers and 44 dana's
If the answer is yes or no--you can't JUST get the gears, you
will need a lot of NEW parts also and since you have a Rubi the front diff takes some special care--I wouldn't recommend that you doit !!

JIMBO
__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 06-06-2011, 09:57 PM   #13
RIPPed

WF Supporting Member
 
TheHighLow's Avatar
 
Join Date: Mar 2011
Location: Mahwah & Brick, NJ
Posts: 166
hypothetically speaking, although I ok with my current setup ('07x w/4.10), if I decide to upgrade my gears what is the best brand to get ($ is no option), i would go for 5.38's...
i think I got 30 up front and 44 in the rear....
TheHighLow is offline   Quote Quick Reply
Old 06-06-2011, 10:00 PM   #14
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,916
Yukon is ONE of the best,but



Quote:
Originally Posted by TheHighLow View Post
hypothetically speaking, although I ok with my current setup ('07x w/4.10), if I decide to upgrade my gears what is the best brand to get ($ is no option), i would go for 5.38's...
i think I got 30 up front and 44 in the rear....
You can't go with 5.38s, not with a Dana 30 front diff. has to be 5.13s--OK

JIMBO
__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 06-07-2011, 12:30 AM   #15
RIPPed

WF Supporting Member
 
TheHighLow's Avatar
 
Join Date: Mar 2011
Location: Mahwah & Brick, NJ
Posts: 166
Quote:
Originally Posted by JIMBOX View Post
Yukon is ONE of the best,but





You can't go with 5.38s, not with a Dana 30 front diff. has to be 5.13s--OK

JIMBO
thanks for the correction, i'm still learning all this Jeep stuff.....
TheHighLow is offline   Quote Quick Reply
Old 06-07-2011, 05:16 AM   #16
Jeeper
 
Maddawg's Avatar
 
Join Date: May 2011
Location: Raleigh/Garner/Clayton
Posts: 269
Quote:
Originally Posted by JIMBOX View Post
Yukon is ONE of the best,but





You can't go with 5.38s, not with a Dana 30 front diff. has to be 5.13s--OK

JIMBO
So the guys with Rubi's are switching from Dana 44's or just staying at 4.10
__________________
2013 Chevy Tahoe 4x4
Maddawg is offline   Quote Quick Reply
Old 06-07-2011, 05:57 AM   #17
IITYWTMWYBMAB

WF Supporting Member
::WF Administrator::
 
4Jeepn's Avatar
 
Join Date: Apr 2005
Location: Florence, KY
Posts: 9,796
Images: 5
Also don't forget the pinion gets smaller the lower in gears you go, less contact area etc.

__________________
79.96.85.00.01.97.00.97.93.97.95.94
CJ.XJ.CJ. TJ. TJ.ZJ. TJ.TJ. ZJ.ZJ.YJ. XJ
4Jeepn is offline   Quote Quick Reply
Old 06-07-2011, 08:02 AM   #18
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,916
No, with the Rubi we have the Dana 44 front/back (differential type)and the 4.10 gears are provided by Chrysler because of the Feds/CAFE--4.10 gears are to "low" a ratio even for stock tires/w auto, with stick, they are manageable, but you have to forget about O/D in both-


Quote:
Originally Posted by Maddawg View Post
So the guys with Rubi's are switching from Dana 44's or just staying at 4.10
Remember Maddog, these jeepers aren't guys with RUBIs, some switch/some don't--it's all individual preference and desire-

If it was a perfect world and we had LEVEL freeways/aerodynamic jeeps and no headwinds, then you could run 40" tires and run your 3.8L at 1900rpm---25mpg------but

That ain't gonna happen, so-IF YOU WANT PERFORMANCE/MILEAGE/W O/D--AND YOU HAVE A STICK-YA GOTTA CHANGE TO 4.88 GEARS (2DR), 5.13 GEARS (4DR) AND IF YOU HAVE AN AUTO, 5.13 GEARS STICK /AUTO FOR 2DR NON-RUBI AND 4DR NON-RUBI--if you tow a lot--5.13 gears

If you have a Rubi and you want the BEST performance with BIGGER tires--ya gotta go with 5.38s, it just lets the 3.8L BREATH and run in it's comfort zone 2200/3200 rpm--best mileage with bigger tires, I've found is 2250 rpm 19 mpg-

Remember the 3.8L wasn't invented for the JEEP-it's been around for over 20 years for smaller CARS/VANS and they were aerodynamic --heh heh and didn't put on bigger tires !

Just rejoice if you believe in the "Jesus" engine, coming out in 2012, but

I'm afraid that new 4dr owners, will still find that 4.10 gears aren't gonna be adequate--

NOW A LITTLE DISCLAIMER-- these are my opinions from practice and research--please don't jump down my throat, if you disagree-fine, just ask and I and others will comment-

By the way, I drive a toyota MATRIX back and forth from Ca to Nv at 3000 rpm for over 3hrs a trip--mountains/valleys/headwinds--25mpg

So the 3.8L isn't afraid of 2000/3000 rpm--it needsit

Smokemifyougotem

JIMBO
__________________
"ya gotta have class"
JIMBOX is offline   Quote Quick Reply
Old 06-07-2011, 12:49 PM   #19
Jeeper
 
Maddawg's Avatar
 
Join Date: May 2011
Location: Raleigh/Garner/Clayton
Posts: 269
Jim your #12 post and the #18 are a little confusing to me. I know i want to eventually run 35's- 33's at least and i will be towing a 6x12 open trailer (Mulch, ATv's ,crap. I've read that the Rubi will feel slugish....To fix the problem may users have regeared. On post #12 you stated that you wouldn't recommend it. ( or were you talking about that gear setup) and post #18 you stated

"If you have a Rubi and you want the BEST performance with BIGGER tires--ya gotta go with 5.38s, it just lets the 3.8L BREATH and run in it's comfort zone 2200/3200 rpm--best mileage with bigger tires, I've found is 2250 rpm 19 mpg-"


So when i go to 4 wheel parts and ask for a 5.38 regear are they going give me a dear in the headlights look
__________________
2013 Chevy Tahoe 4x4
Maddawg is offline   Quote Quick Reply
Old 06-07-2011, 12:52 PM   #20
MTH
Fun Killing Ninja
 
MTH's Avatar
 
Join Date: Oct 2010
Location: North Carolina
Posts: 8,542
If you put 35s on your Rubi with an auto transmission, you'll want it regeared.

Truthfully, even with the stock tires on an auto transmission, you probably want it regeared. But definitely with 35s. 5.38s sounds about right. Whatever Jimbo may have said, he meant that.
__________________
Mike
2010 JKU "Mountain" Edition
TeraFlex 2.5" Coil Lift : Old Man Emu Nitrocharger Shocks : 33x12.5R15 Goodyear DuraTracs : 15x8 Black Rock 909s : Other Stuff . . .
MTH is offline   Quote Quick Reply
Old 06-07-2011, 01:10 PM   #21
Jeeper
 
JIMBOX's Avatar
 
Join Date: Nov 2009
Posts: 9,916
Sorry, I'm not used to this english language !


Quote:
Originally Posted by Maddawg View Post
Jim your #12 post and the #18 are a little confusing to me. I know i want to eventually run 35's- 33's at least and i will be towing a 6x12 open trailer (Mulch, ATv's ,crap. I've read that the Rubi will feel slugish....To fix the problem may users have regeared. On post #12 you stated that you wouldn't recommend it. ( or were you talking about that gear setup) and post #18 you stated

"If you have a Rubi and you want the BEST performance with BIGGER tires--ya gotta go with 5.38s, it just lets the 3.8L BREATH and run in it's comfort zone 2200/3200 rpm--best mileage with bigger tires, I've found is 2250 rpm 19 mpg-"


So when i go to 4 wheel parts and ask for a 5.38 regear are they going give me a dear in the headlights look
Quote:
Originally Posted by MTH View Post
If you put 35s on your Rubi with an auto transmission, you'll want it regeared.

Truthfully, even with the stock tires on an auto transmission, you probably want it regeared. But definitely with 35s. 5.38s sounds about right. Whatever Jimbo may have said, he meant that.
I only ref'd Rubis, cause they are issued with Dana 44s front/back and you CAN GET 5.38s for them, but

If you don't have a Rubi-you have a dana 30 in front and the highest gear ratio you can get (that'll fit) is the 5.13-

So right off the top----If you're gonna regear, nio matter what model you have--choose 5.13s/5.38s---stay away from any 4.10/4.56/4.88--

Cause sooner or later you're gonna RE-TIRE and go bigger--

Capish ?

Now if you want some reading mat'l--google JK/JKU 5.13/5.38 ?

JIMBO

__________________
"ya gotta have class"
JIMBOX 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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
What auto tranny was behind a 2.5? Ibuildembig YJ Tech Forum 10 01-28-2011 11:18 PM
Auto tranny capacities mannyssj13 TJ Tech Forum 1 01-21-2011 09:04 PM
auto tranny 89 wrangler won't shift to any gear mitchjeep YJ Tech Forum 0 06-20-2010 03:33 PM
'02 Wrangler Auto Tranny Q? R1Gal TJ Tech Forum 2 12-19-2007 08:53 PM
Auto Tranny and TC breather Tubes nicolas-eric TJ Tech Forum 1 09-10-2007 03:55 PM


logo carid shop wrangler parts carid fender flares custom wheels store avs deflectors at carid
» Rates
Get low rates on auto insurance in Canada!

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 08:08 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