trying to my gearing right.Help - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ 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 05-19-2013, 05:52 AM   #1
Jeeper
 
evilmonkey454's Avatar
 
Join Date: Oct 2011
Location: East Bridgewater MA
Posts: 15
trying to my gearing right.Help

So I bought my first Jeep. It's a 98 Sahara with a 4.0 and 35inch super swampers and it has a blown rear end it has 3.07s now . I want to up the gearing but not sure where to go. I hear a lot of people talking about 5.13s but for some reason it seems a little to much , as I still want to be able to drive it down the highway with out blowing the motor. Right now I'm torn between 4.88s and 4.56s however I'm reading and being told 4.10s might be the way to go. Please help and I'm sorry for bring up the gearing thing again as I see it on plenty of posts.

evilmonkey454 is offline   Quote Quick Reply
Old 05-19-2013, 06:27 AM   #2
Jeeper
 
Join Date: Jan 2012
Location: Lafayette Hill, PA
Posts: 1,452
What transmission?

Big Cole is offline   Quote Quick Reply
Old 05-19-2013, 09:47 AM   #3
Supporting Member

WF Supporting Member
 
Water Dog's Avatar
 
Join Date: Mar 2011
Location: Roseville, CA
Posts: 4,813
Images: 11
Quote:
Originally Posted by Big Cole View Post
What transmission?
^^X2...Stick or auto?
__________________
Dennis
Water Dog is online now   Quote Quick Reply
Old 05-19-2013, 10:29 AM   #4
Jeeper
 
SpoiledRotten's Avatar
 
Join Date: Aug 2011
Location: Central MS
Posts: 338
Images: 13
And are you going to stay with the 35s or maybe 33s in the future?
I have 33s and the 4.0 with manual 5 spd. I love the 4.56 gears in mine. They seem to be the perfect fit for my application.
SpoiledRotten is offline   Quote Quick Reply
Old 05-19-2013, 11:19 AM   #5
Jeeper
 
Rubi513's Avatar
 
Join Date: Apr 2013
Location: Conroe, Texas
Posts: 1,575
Quote:
Originally Posted by evilmonkey454 View Post
So I bought my first Jeep. It's a 98 Sahara with a 4.0 and 35inch super swampers and it has a blown rear end it has 3.07s now . I want to up the gearing but not sure where to go. I hear a lot of people talking about 5.13s but for some reason it seems a little to much , as I still want to be able to drive it down the highway with out blowing the motor. Right now I'm torn between 4.88s and 4.56s however I'm reading and being told 4.10s might be the way to go. Please help and I'm sorry for bring up the gearing thing again as I see it on plenty of posts.
Most people who run 5.13 gears have the 42rle transmission, which you will not have.
__________________
"I have not failed. I've just found 10,000 ways that won't work."
Rubi513 is offline   Quote Quick Reply
Old 05-19-2013, 01:23 PM   #6
Jeeper
 
evilmonkey454's Avatar
 
Join Date: Oct 2011
Location: East Bridgewater MA
Posts: 15
Wow thanks for the overwhelming response. Sorry I did not give you all the info it is a 5 speed manual transmission
evilmonkey454 is offline   Quote Quick Reply
Old 05-19-2013, 01:30 PM   #7
Jeeper
 
NC Bear's Avatar
 
Join Date: Jun 2012
Location: North Carolina
Posts: 1,249
Quote:
Originally Posted by evilmonkey454 View Post
Wow thanks for the overwhelming response. Sorry I did not give you all the info it is a 5 speed manual transmission

4.10-4.88 with 4.88 being optimum for heavy mud terrains and steel wheels.


Now, having said that, I have 4.10's and 33's and I am happy. I was told that I would still be ok if / when I went to 35's. If I do I will re re gear to 4.88.
NC Bear is offline   Quote Quick Reply
Old 05-19-2013, 01:32 PM   #8
Jeeper
 
evilmonkey454's Avatar
 
Join Date: Oct 2011
Location: East Bridgewater MA
Posts: 15
More than likely I'll be staying with the 35's I really like the way they look. I was leaning toward the 4.56 because the would be a little more power then the 4.10s but a little more highway speed then the 4.88 gears. I found a chart that said the 4.10 would be best fuel the 4.56 would be close to factor and the 5.13 would be most power with 35 inch tires. However never said anything about engine or transmission. So that was the reason for the question thanks again for the quick response. I look forward to wheeling with my new toy.
evilmonkey454 is offline   Quote Quick Reply
Old 05-19-2013, 02:00 PM   #9
Jeeper
 
evilmonkey454's Avatar
 
Join Date: Oct 2011
Location: East Bridgewater MA
Posts: 15
NCBear how is that on the highway or do you just not use the highway that much?
evilmonkey454 is offline   Quote Quick Reply
Old 05-19-2013, 02:06 PM   #10
Jeeper
 
amiller's Avatar
 
Join Date: Jun 2012
Posts: 349
What rear end do you have? If its a Dana 35, I would look to make a swap for a stronger axle. With 35's and a five speed, I'd go for the 4.88.
__________________
2005 TJ with a few goodies
amiller is offline   Quote Quick Reply
Old 05-19-2013, 02:10 PM   #11
Jeeper
 
NC Bear's Avatar
 
Join Date: Jun 2012
Location: North Carolina
Posts: 1,249
awesome on the highway. In fact I only have to downshift to 4th on very steep grades. 99.9% of the time I am in 5th and can accelerate rapidly. There is only one grade on the interstate that I have to downshift on. It is on the way to my home county in the mountains (Old Fort grade going into Black Mtn) Going up the Saluda grade on I 26 I can stay in 5th, as well as Cowee Mtn in Jackson / Macon co.

Obviously this is in NC....your mileage may vary.

I am running alloy wheels and lighter TA / KO's and 33's.
NC Bear is offline   Quote Quick Reply
Old 05-19-2013, 02:39 PM   #12
Jeeper
 
Join Date: Jan 2012
Location: Lafayette Hill, PA
Posts: 1,452
The correct answer is 4.88 gears. 5.13s are not an option with your D30. Don't waste your time or money installing 4.56s
Big Cole is offline   Quote Quick Reply
Old 05-19-2013, 02:42 PM   #13
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 30,873
Images: 2
Quote:
Originally Posted by evilmonkey454 View Post
Wow thanks for the overwhelming response. Sorry I did not give you all the info it is a 5 speed manual transmission
4.88 is optimal for 35" tires, 4.0L engine, and the 5-speed transmission. I ran that combination for years and I couldn't have wished for a better gear ratio for both the highway and offroad use.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 05-19-2013, 03:41 PM   #14
Jeeper
 
evilmonkey454's Avatar
 
Join Date: Oct 2011
Location: East Bridgewater MA
Posts: 15
30 on the front and 35 on the rear would love some 44's but I'll make these work for now. Maybe I'll change to something different in the future
evilmonkey454 is offline   Quote Quick Reply
Old 05-22-2013, 03:50 PM   #15
Jeeper

WF Supporting Member
 
yoopone's Avatar
 
Join Date: Dec 2010
Location: Suburban Chicago and the UP of Michigan
Posts: 584
Quote:
Originally Posted by Jerry Bransford View Post
4.88 is optimal for 35" tires, 4.0L engine, and the 5-speed transmission. I ran that combination for years and I couldn't have wished for a better gear ratio for both the highway and offroad use.
Would you change your mind if you had the 6 speed manual in the Rubicon? Or would the 4.88's still be the way to go?
__________________
1989 YJ
1997 TJ
1999 TJ
2006 TJ
2005 TJ Rubicon
yoopone is offline   Quote Quick Reply
Old 05-22-2013, 07:48 PM   #16
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 30,873
Images: 2
Quote:
Originally Posted by yoopone View Post
Would you change your mind if you had the 6 speed manual in the Rubicon? Or would the 4.88's still be the way to go?
That depends on you & your uses... if your Jeep is really a 99% road vehicle with lots of highway use & not much real offroading, you might like 4.56 better with the 6-speed. If it has a higher percentage of offroad use than that, you would probably like 4.88 better.

The woman I know who hated the 4.88 gearing with her 6-speed and 35" tires didn't do much (if any) offroading.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 05-23-2013, 05:43 AM   #17
Jeeper

WF Supporting Member
 
yoopone's Avatar
 
Join Date: Dec 2010
Location: Suburban Chicago and the UP of Michigan
Posts: 584
Quote:
Originally Posted by Jerry Bransford View Post
That depends on you & your uses... if your Jeep is really a 99% road vehicle with lots of highway use & not much real offroading, you might like 4.56 better with the 6-speed. If it has a higher percentage of offroad use than that, you would probably like 4.88 better.

The woman I know who hated the 4.88 gearing with her 6-speed and 35" tires didn't do much (if any) offroading.
Thank you. It is mostly on the trails and mud of the Upper Peninsula of Michigan. Not much highway driving, not a daily driver but driven off road a ton. Thanks for answering, I appreciate it.

__________________
1989 YJ
1997 TJ
1999 TJ
2006 TJ
2005 TJ Rubicon
yoopone 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



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 12:58 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