Transfer case gear ratio -
LinkBack Thread Tools
post #1 of 2 Old 10-06-2012, 11:42 AM Thread Starter
Registered User
1998 ZJ 
Join Date: Oct 2012
Location: Salisbury
Posts: 4
Transfer case gear ratio

I have a 98 Grand Cherokee 5.2L. The front and rear ends are both geared 3.73 where the transfer case is geared 2.72. Should the transfer case be geared the same? In 4lo the Jeep do not move it just grinds! Any help will be appreciated!

pinky38 is offline  
Sponsored Links
post #2 of 2 Old 10-06-2012, 12:47 PM
Registered User
1995 ZJ 
Join Date: Dec 2010
Location: Norman
Posts: 2,348
It does not matter what the t-case ratio is in respect to the axle ratios, thats just where you get another reduction from "low range". In high range the t-case is a 1:1 ratio, meaning the input speed is the same as the output speed, in low range the input speed is 2.72 times faster than the output speed.

If it grinds in 4low you either have something broken inside the t-case or the shift linkage is out of adjustment and its just not getting fully engaged into 4low. I would want to assume the shift linkage is out of adjusment, there is an adjustment rod/pinch bolt under the Jeep infront of the t-case right beside the trans on the drivers side. I would loosen that bolt and slide the linkage a little bit to see if that helps.
jnicewan is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

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 On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome