Dont laugh, i need gear explenation. - 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 08-21-2013, 05:45 PM   #1
Jeeper
 
GKjeep's Avatar
 
Join Date: Mar 2011
Posts: 263
Dont laugh, i need gear explenation.

Everyone keeps talking about what gear setup they have with each tire and lift size... I have no idea what these gears are referring to, but I've been asked what gears I'm running and I had to stutter because I had no clue how to answer it.

What are gears?
How are they changed?
How do I identify mine?

__________________
i need a cool signature
GKjeep is offline   Quote Quick Reply
Old 08-21-2013, 05:59 PM   #2
Jeeper
 
Join Date: Jul 2011
Location: Littleton, CO
Posts: 25
The gears everyone refers to are in both axles, in the differential, or that round-ish looking thing. The numbers are a ratio of how many times the driveshaft turns to turn the axleshaft one time. This number can range quite a bit, but the number you will see most is 3.07 through about 5.13. The stock base model 6 cylinder, 5 speed usually runs a 3.07. When you add larger tires, the engine has to work harder, and becomes sluggish. My TJ has a 6 cylinder, 5 speed, 33inch tires, and 4.56 gears. This makes the engine happy, and I can climb hills in 5 gear. The axle ratio is generally stamped on a plate on the differential. If not I can give more instructions on how to figure that out.

__________________
...and if all else fails, use a bigger hammer!
Support your local Search and Rescue Team, Get lost.
My search and rescue dog is smarter than your honor student.
Philranger is offline   Quote Quick Reply
Old 08-21-2013, 06:05 PM   #3
Stubborn but Docile

WF Supporting Member
 
elite56's Avatar
 
Join Date: Feb 2013
Location: Jacksonville, Fl
Posts: 801
Should be on a plate on the back left side of rear axle.


Click image for larger version

Name:	image-2723982165.jpg
Views:	75
Size:	193.2 KB
ID:	288595
elite56 is online now   Quote Quick Reply
Old 08-21-2013, 06:52 PM   #4
Jeeper
 
GKjeep's Avatar
 
Join Date: Mar 2011
Posts: 263
Quote:
Originally Posted by Philranger View Post
The gears everyone refers to are in both axles, in the differential, or that round-ish looking thing. The numbers are a ratio of how many times the driveshaft turns to turn the axleshaft one time. This number can range quite a bit, but the number you will see most is 3.07 through about 5.13. The stock base model 6 cylinder, 5 speed usually runs a 3.07. When you add larger tires, the engine has to work harder, and becomes sluggish. My TJ has a 6 cylinder, 5 speed, 33inch tires, and 4.56 gears. This makes the engine happy, and I can climb hills in 5 gear. The axle ratio is generally stamped on a plate on the differential. If not I can give more instructions on how to figure that out.
That gave a better explanation of it. I think I get it now, so this might be the reason why I have a hard time climbing Hills.

I did check for that stamp/plate behind the rear differential, but couldn't find anything. Probably because the diff cover is changed.

But how are the gears changed? Is it something that is done in. Garages? Or is it something a pro needs to do? How much does a gear job usually cost? And what gears would you recommend for me?

04 rubicon 5" lift 5 speed manual trans. Not sure if that is enough info.
__________________
i need a cool signature
GKjeep is offline   Quote Quick Reply
Old 08-21-2013, 07:00 PM   #5
Stubborn but Docile

WF Supporting Member
 
elite56's Avatar
 
Join Date: Feb 2013
Location: Jacksonville, Fl
Posts: 801
It's something that usually people take to a shop to have done because of the tools and expertise needed. I'd say the average price is between $1000-$1500.
What size tire do you have?
elite56 is online now   Quote Quick Reply
Old 08-21-2013, 07:00 PM   #6
Jeeper
 
n00g7's Avatar
 
Join Date: Apr 2013
Location: Northern VT // Western Wisconsin
Posts: 1,705
Rubicon and you have trouble climbing hills? How large are your tires?
__________________
That moment when you look at a really nice JK and think to yourself, "Well I SUPPOSE I could see myself trading in my TJ for one of those, but for those ugly ass door handles."
n00g7 is offline   Quote Quick Reply
Old 08-21-2013, 07:00 PM   #7
Jeeper
 
Join Date: Apr 2013
Location: Connecticut
Posts: 168
What size tires are you running? Your rubi should have a dana 44 with 4.10 gears stock I think.
__________________
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
apannone is offline   Quote Quick Reply
Old 08-21-2013, 07:14 PM   #8
Jeeper
 
GKjeep's Avatar
 
Join Date: Mar 2011
Posts: 263
I have 33x12.5 15


Ok I may have been exaggerating, I don't really have a problem climbing hills, sometimes it just feels like I'm pushing her too hard and she wants to give out.

And yeah it is the stock Dana 44s
__________________
i need a cool signature
GKjeep is offline   Quote Quick Reply
Old 08-21-2013, 07:19 PM   #9
Jeeper
 
n00g7's Avatar
 
Join Date: Apr 2013
Location: Northern VT // Western Wisconsin
Posts: 1,705
Well, I'd leave it alone personally. It's expensive and 33's are right in the ballpark for 4.1 unless you're really high up or drive a lot of steep grades. You have a 4:1 tcase for offroading, I'd value the better cruising rpm w/o regearing.

If getting going in first feels good, I wouldn't worry much about the top end going up steep hills. Drop a gear and cruise.
__________________
That moment when you look at a really nice JK and think to yourself, "Well I SUPPOSE I could see myself trading in my TJ for one of those, but for those ugly ass door handles."
n00g7 is offline   Quote Quick Reply
Old 08-21-2013, 07:29 PM   #10
Jeeper
 
GKjeep's Avatar
 
Join Date: Mar 2011
Posts: 263
Quote:
Originally Posted by n00g7 View Post
Well, I'd leave it alone personally. It's expensive and 33's are right in the ballpark for 4.1 unless you're really high up or drive a lot of steep grades. You have a 4:1 tcase for offroading, I'd value the better cruising rpm w/o regearing.

If getting going in first feels good, I wouldn't worry much about the top end going up steep hills. Drop a gear and cruise.
Got it! Everything else feels great, first second... Etc. even on the fwy, I have no problem cruising at 70mph. There is only this one steep hill that I have to go to get on the freeway from my house. When I am on it I'm usually in third gear and no matter how much I press on the pedal I don't speed up, instead it slowly the speed drops from 35 to 25ish. But by the time that happens I am at the intersection and at the top of the hill.
__________________
i need a cool signature
GKjeep is offline   Quote Quick Reply
Old 08-21-2013, 07:30 PM   #11
Moderator

WF Supporting Member
::WF Moderator::
 
doclouie's Avatar
 
Join Date: Feb 2010
Location: Was in the mountains, now in Texas
Posts: 3,674
Images: 4
Yes unless someone already changed out your gears you will have 4.10 gears as that was stock on the Rubicon models. For 33" tires and your 5 speed tranny the ideal gear ratio is 4.56. 4.10 is only ideal for 33" tires if you have a 3 speed auto tranny. A regear must be done to both the front and rear axles and runs anywhere from $1000-$1500 depending where you live. Regearing is not something I would recommend doing by yourself. It can be done, but it must be done perfectly or it will trash your axles.
__________________
2000 Sahara, 3.5" Rubicon Express Lift, 1" spring spacer & 1" Body Lift, 33" or 35" BFG Mud tires, Front & Rear ARB, Rancho 9000 shocks, UCF Ultra High Belly Up

doclouie is offline   Quote Quick Reply
Old 08-21-2013, 08:25 PM   #12
Jeeper
 
MichTJ's Avatar
 
Join Date: May 2013
Location: Southeast MI
Posts: 75
For what it's worth...

If your metal tag on the rear diff is rusted out and you cannot identify numbers on it (such as mine was)... check the front axle's tag!

__________________
________
|»»l,[____],
l---L -OlllllllOČ
()_) ()_)--o-)_)
MichTJ 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




» Featured Product

All times are GMT -5. The time now is 06:46 AM.



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