Gear Swap - 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 04-21-2012, 04:34 PM   #1
Jeeper
 
Wheel2Work's Avatar
 
Join Date: Feb 2011
Location: Southern Oregon
Posts: 874
Gear Swap

I recently changed to 4.10 gears and installed a Truetrac in the rear... Now I have a happier drive train!

I read somewhere (I just wish that I could remember where!) that you should reset the adaptive memory after a performance upgrade. Does that apply to gear changes also? I don't have any codes, but the automatic transmission seems to be locking up way to early.

My speedo is still incorrect, but the new gear arrives on Tuesday. Will changing this input have the effect that I hope it will have on the shift points?

Thaks for any replies in advance

__________________
2000 4.0l Sport, Auto, some mods done - planning more
Wheel2Work is offline   Quote Quick Reply
Old 04-21-2012, 04:45 PM   #2
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 30,894
Images: 2
The engine computer will eventually adapt to a change like that. But the engine computer will be a little confused on its RPMs vs. speed now which will be resolved by the new speedometer gear. Shift points won't change after the new speedometer gear is installed since the transmission shifts purely on hydraulic pressure, it gets no input on when to shift from the engine computer. That didn't start happening until 2003.

__________________
When you have a choice, buy American.

Jerry Bransford is online now   Quote Quick Reply
Old 04-21-2012, 05:18 PM   #3
Jeeper
 
Wheel2Work's Avatar
 
Join Date: Feb 2011
Location: Southern Oregon
Posts: 874
Thanks for the reply... I just wanted to confirm my suspicions about the 3 speed It seems like I was over thinking the perceived problem!!!
__________________
2000 4.0l Sport, Auto, some mods done - planning more
Wheel2Work is offline   Quote Quick Reply
Old 04-21-2012, 06:01 PM   #4
Jeeper
 
TnDz TJ's Avatar
 
Join Date: Apr 2011
Location: Reno, NV
Posts: 2,925
Images: 220
Quote:
Originally Posted by Jerry Bransford View Post
The engine computer will eventually adapt to a change like that. But the engine computer will be a little confused on its RPMs vs. speed now which will be resolved by the new speedometer gear. Shift points won't change after the new speedometer gear is installed since the transmission shifts purely on hydraulic pressure, it gets no input on when to shift from the engine computer. That didn't start happening until 2003.
So its a good idea to do a reset in 04-06 models after an upgrade like this? I thought about it, but wasn't sure....
__________________
~Todd~ 2004 X 4.0 5 speed---SOLD
4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
NOPE! ... and NEVER will be...
TnDz TJ is offline   Quote Quick Reply
Old 04-21-2012, 06:03 PM   #5
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 30,894
Images: 2
Quote:
Originally Posted by TnDz TJ View Post
So its a good idea to do a reset in 04-06 models after an upgrade like this?
I personally wouldn't bother, the computer is smart enough to eventually figure such things out on its own.
__________________
When you have a choice, buy American.

Jerry Bransford is online now   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 12:01 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