Gear Install -
LinkBack Thread Tools
post #1 of 5 Old 01-03-2013, 02:46 PM Thread Starter
Registered User
1999 WJ 
Join Date: Jul 2012
Location: Eldorado
Posts: 210
Gear Install

Hey guys...I am going to be getting a HP d30 soon...since they are so hard to find around where I live with 4.10 gears, I may be forced to buy one with 3.55's, use my 3.73 carrier out of my current LP d30 and install gears in it. I was trying to find one with 4.10's so that I only had to change the gears in 1 axle...however I cannot find a hp d30 with 4.10's ANYWHERE....searched cl 250 miles, looked on car-part....people want a fortune on 700 bucks...screw that...i can buy a hp d30 already pulled with 3.55's all day for 100-150...or go pull one myself for 75. this something I can accomplish on myself? I have never messed with differentals...I have had them buddy that I know who does it all the time, well he just bought a house, and I don't really want to bother him...

My rear is a ford 8.8....I just bought yukon shafts for the front, and can use my carrier, locker, and the shafts to use in the hp d30.

I also need to remove my carrier and my locker from my existing lp d30 which I don't know how to do since I have never done it...When I do buy the hp d30 I will need to change the axle seals, and do I need to change the bearings in the diff as well?

matholland is offline  
Sponsored Links
post #2 of 5 Old 01-03-2013, 03:35 PM
Registered User
1998 ZJ 
Join Date: Aug 2011
Location: The Abyss
Posts: 21,396
Can you even use the same carrier in both axles? The HP 30 is reverse cut, the LP is standard. Setting up gears is something that takes a decent amount of knowledge and profession to do correctly. You may want to read into it more. It's not a simple task.
PolkaPower is offline  
post #3 of 5 Old 01-03-2013, 03:42 PM Thread Starter
Registered User
1999 WJ 
Join Date: Jul 2012
Location: Eldorado
Posts: 210
I have a buddy that is going to assist...i didn't want to bother him but i asked and he said he didn't care to help...yes carriers are the same, only the gears are different.
matholland is offline  
post #4 of 5 Old 01-03-2013, 04:35 PM
coralman's Avatar
1998 ZJ 
Join Date: Jul 2010
Location: florida
Posts: 7,918
Not a mech by any means, but I did alot of research and listened to guys here and in the wrangler forum. I thinks its been aleast six months and no problems so far. It wasn't exactly what I would call fun. Links in the post may help you.

Info on projects and repairs categorized by system

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Originally Posted by HighLonesome
lol...if life is as a simple as a 5.9 making you happy, I'd say go ahead and buy it on impulse. ZJs are the way of Zen. Wax on, wax off
coralman is offline  
post #5 of 5 Old 03-28-2013, 02:39 PM Thread Starter
Registered User
1999 WJ 
Join Date: Jul 2012
Location: Eldorado
Posts: 210
Alright guys...I have the front gears buddy has been busy with buying a house and fixing it up, and getting married in may...Installing the gears only took about 2 hours...The axle was out though, so it made things easier...the 8.8 is still installed in the jeep...I have a mini-spool, and it has some play if I jack up one side and spin the tire...which causes a loud clunk if you let off the gas and hit it again, or something similar...I would like to get rid of that as well, but not sure if I can on a mini spool...I am tempted to give this a try buddy used all existing shims on the pinion, then put the carrier up to it, and started adding shims to what he figured would be very close...pressed the new bearings on the carrier, and used all the shims that were on it, plus the new ones...and it matched up perfect.

I hate to get in the middle of doing it, and not being able to finish it, but I am trying to get rid of it, and its causing issues with me trying to sell it as well for people that would have to pay good money to get it done if they don't know how to do it.

Thoughts/Suggestions? Never had an 8.8 apart so I am not sure what to expect.
matholland 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