D35C Question - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > General Tech Forums > General Jeep Discussion

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 09-10-2012, 08:29 AM   #1
Jeeper
 
WingingIt74's Avatar
 
Join Date: Mar 2012
Posts: 321
D35C Question

I have about .25" of rotational slop before the gears engage at the yoke.
  • Is this ok?
  • If not, how do I fix it? I hear it while driving and it's driving me nuts.

__________________
-Travis
2001 Jeep TJ 4.0L/5spd
WingingIt74 is offline   Quote Quick Reply
Old 09-12-2012, 07:10 AM   #2
Jeeper
 
WingingIt74's Avatar
 
Join Date: Mar 2012
Posts: 321
Anybody?

__________________
-Travis
2001 Jeep TJ 4.0L/5spd
WingingIt74 is offline   Quote Quick Reply
Old 09-13-2012, 11:10 AM   #3
Jeeper
 
zmotorsports's Avatar
 
Join Date: Mar 2012
Location: Northern Utah
Posts: 618
Rotational movement at the yoke is really hard to determine whether there is internal wear or not. The best and really only way to accurately tell is to remove the differential cover and install a dial indicator perpendicular to the ring gear teeth and check ring/pinion backlash. Specifications should be between .005" and .008". I find this is a great thing to do at the time of servicing the differential.

When I rebuild or re-gear a vehicle I always engrave the ring gear with all of the final setup specifications so when either myself or the next guy has the cover off it can be checked.

The reason why grabbing the yoke and checking is not accurate is because of the several gear meshing points inside the housing that all have a little clearance. This clearance is necessary for proper gear meshing yet it can multiply and give erroneous information when merely checking at the yoke.

Hope that helps. If you would like a visual you can check out my build thread in my signature. I believe on page one or two is where I showed my gear install along with the readings and how to mount the dial indicator.

Mike.
__________________
2011 JKU Rubicon
BDS Long-Arm System/ 17x9 ATX Crawl wheels/35" BFG KM2's/ Plus much, much more.

Click here to see my 2011 JKU Rubicon Build Thread
zmotorsports is offline   Quote Quick Reply
Old 09-27-2012, 04:10 PM   #4
Jeeper
 
WingingIt74's Avatar
 
Join Date: Mar 2012
Posts: 321
If there is too much backlash, can it be adjusted or am I S.O.L.?
__________________
-Travis
2001 Jeep TJ 4.0L/5spd
WingingIt74 is offline   Quote Quick Reply
Old 09-28-2012, 08:16 AM   #5
Jeeper
 
zmotorsports's Avatar
 
Join Date: Mar 2012
Location: Northern Utah
Posts: 618
Backlash between the ring and pinion can be adjusted by shims. The time consuming part is to determine which has to move, the pinion or the ring gear. If it is the pinion due to being too deep or too shallow on the ring gear then you will have to remove the pinion, press the inner bearing off and add or remove shims. Then press the bearing back on, reassemble and recheck backlash. When moving the pinion after looking at a gear pattern and determining if you are close or not I like to make major changes in the approx. .010" range and minor adjustments around .003"-.005".

If you determine that the pinion depth is correct and only need to move the ring gear that is much easier as you simply move shims from one side of the carrier to the other. I like to measure total shim thickness and write this number down prior to messing with shims. I do this so that the carrier preload will be the same once the installation/repair has been completed. If you take .010" from the left side of the carrier make certain to add .010" to the right side. This keeps the same preload on the carrier side bearings.

Mike.
__________________
2011 JKU Rubicon
BDS Long-Arm System/ 17x9 ATX Crawl wheels/35" BFG KM2's/ Plus much, much more.

Click here to see my 2011 JKU Rubicon Build Thread
zmotorsports is offline   Quote Quick Reply
Old 09-28-2012, 08:31 AM   #6
Jeeper
 
WingingIt74's Avatar
 
Join Date: Mar 2012
Posts: 321
Sounds like it can be an easy fix or a pain... I assume to move the ring gear, you would have to slide out the axles shafts?
__________________
-Travis
2001 Jeep TJ 4.0L/5spd
WingingIt74 is offline   Quote Quick Reply
Old 09-30-2012, 09:35 AM   #7
Jeeper
 
zmotorsports's Avatar
 
Join Date: Mar 2012
Location: Northern Utah
Posts: 618
That is correct. To remove and move the shims from one side to the other the axle shafts must not be installed.

Mike.

__________________
2011 JKU Rubicon
BDS Long-Arm System/ 17x9 ATX Crawl wheels/35" BFG KM2's/ Plus much, much more.

Click here to see my 2011 JKU Rubicon Build Thread
zmotorsports 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 11:32 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