Overdrive - 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 06-15-2014, 02:05 PM   #1
Jeeper
 
Join Date: Apr 2010
Posts: 39
Overdrive

Have a 04 tj sport with a 4.0 ,auto and my question is does it cause any problems running with the O/D off on the freeways, 35s and 4.10s

showtime is offline   Quote Quick Reply
Old 06-15-2014, 02:43 PM   #2
Jeeper
 
UnlimitedLJ04's Avatar
 
Join Date: Aug 2010
Posts: 7,386
you're not geared properly, that's the problem.

you've lost an entire gear on the top end (and also the bottom end for slow speed off-road stuff)

the only negative is turning more RPMs on the highway than you need....

you actually need about ~5.13-5.38 gears with that combination. and a bigger brake kit to be able to stop.

__________________
Suggested Tech Readings
UnlimitedLJ04 is offline   Quote Quick Reply
Old 06-15-2014, 03:44 PM   #3
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,253
Images: 2
Quote:
Originally Posted by UnlimitedLJ04 View Post
you're not geared properly, that's the problem.

you've lost an entire gear on the top end (and also the bottom end for slow speed off-road stuff)

the only negative is turning more RPMs on the highway than you need....

you actually need about ~5.13-5.38 gears with that combination. and a bigger brake kit to be able to stop.
X2. Whoever chose 4.10 for that combination (35's and the 4-speed 42RLE transmission) made a big mistake.
__________________
Gone wheeling, back late sunday...
Remember that having a different opinion doesn't also require one to be a jerk when expressing it.

When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 06-16-2014, 05:43 AM   #4
Jeeper
 
Join Date: Apr 2010
Posts: 39
Thanks,i realize i need a gear swap but if is not hurting trany this will work for the time being
showtime is offline   Quote Quick Reply
Old 06-16-2014, 06:13 AM   #5
Jeeper
 
UFOtestpilot's Avatar
 
Join Date: Nov 2012
Location: Portland, Oregon
Posts: 1,822
I can't imagine it being "good" for the transmission. Regardless, you definitely have zero need for overdrive.
__________________
For some, it is easier to kill the light inside of themselves than it is to fight the darkness all around them.
UFOtestpilot is offline   Quote Quick Reply
Old 06-16-2014, 06:20 AM   #6
Jeeper
 
Join Date: Apr 2013
Posts: 2,564
Generally direct drive is the least taxing gear to run a tranny in as there is generally just a lockup of input shaft to output shaft and that is why under heavy loads like towing many manafactures recommend turning OD off

Digger84 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




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 07:40 AM.



Jeepģ, 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