Disconnect vs non-disconnect? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 15 Old 12-24-2006, 11:08 AM Thread Starter
m1a convert
Registered User
 
Join Date: Nov 2006
Location: Idaho
Posts: 105
Disconnect vs non-disconnect?

I have a TJ and want to swap a HP30 front axle underneath. What is the difference between Disconnect vs non-disconnect axles?

Will getting a non-disconnect mean a solid axle shaft all the way through and that i can run manual hubs?

m1a convert is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 12-24-2006, 12:27 PM
Chris_Walker
Registered User
 
Chris_Walker's Avatar
1988 XJ Cherokee 
 
Join Date: Jan 2006
Location: Pitman, NJ
Posts: 1,261
The disconnect axle has a 2 piece shaft on the right side, the non-disconnect doesn't. The disconnect axle is a pos IMO.
Chris_Walker is offline  
post #3 of 15 Old 12-24-2006, 01:35 PM
RussoGuitar
Registered User
1989 XJ Cherokee 
 
Join Date: Jan 2006
Location: West Milford, NJ
Posts: 1,609
Go for a non disconnect. Much more reliable. You can find them on any 92 plus chero's. Most after 89 were non disco but some were.
RussoGuitar is offline  
post #4 of 15 Old 12-24-2006, 01:59 PM
PhatJeeps
Registered User
 
Join Date: Jul 2006
Location: your neck of the woods
Posts: 425
Quote:
Originally Posted by Et3rnal 360
The disconnect axle has a 2 piece shaft on the right side, the non-disconnect doesn't. The disconnect axle is a pos IMO.
What he said.
PhatJeeps is offline  
post #5 of 15 Old 12-24-2006, 02:15 PM Thread Starter
m1a convert
Registered User
 
Join Date: Nov 2006
Location: Idaho
Posts: 105
So how do the non-disco axles disconnect with tires?

If I swap in a non-disco, how would this work with a TJ which has a disconnect?
m1a convert is offline  
post #6 of 15 Old 12-24-2006, 03:32 PM
tweekedknee
Registered User
 
Join Date: Oct 2005
Location: RI
Posts: 578
They dont...



Another related question, Why does every one hate the disco axles so much, seems like the easiest way to have a selectable locker. Weld the spider gears and then run a cable to the selector fork

'97 XJ (here comes the typical list)
3" rustys full pack, Rock Krawler tracbar, 31x10.5 Kumho kl71, CIK, dynomax super turbo muffler, IPF h4 conversions, silverstar bulbs, hella 530 fogs, olympic 4x4 rock front bumper, tcase drop, bush hacker flares, OEM tow hook brackets with GM hooks
tweekedknee is offline  
post #7 of 15 Old 12-24-2006, 04:16 PM
AznDrgn
Registered User
 
Join Date: Feb 2005
Location: Harrisonburg, Va.
Posts: 1,020
Quote:
Originally Posted by m1a convert
So how do the non-disco axles disconnect with tires?

If I swap in a non-disco, how would this work with a TJ which has a disconnect?
Your TJ shouldn't have a disconnect front axle. Either axle will bolt right up but with a disconnect you'd have to figure out a way to lock the inner and outer axle shafts on the passenger side to get into 4wd. The XJ does this through a vacuum actuated shift fork which is controlled by a valve on the TC. The vacuum actuated fork is totally unreliable in most cases and the shaft is normally replaced with a one piece from a non disconnect axle or else there are some after market cable actuated solutions.

Tweaked, I personally hated my disconnect axle because it was always erratic as to when it decided to work or not work and it always chose the worst times to not work. After replacing it with a one piece shaft I know that every time I pull that lever into 4wd I am actually going to get 4wd.

'87 Jeep Cherokee Laredo 4.0L, NP231, AW4, 5.5" lift, s10/waggy/XJ bastard pack, 7" fabtech TJ coil springs - Weekend play thing
'83 Porsche 944 2.5L Callaway turbo - Daily driver
'81 Porsche 924 - Custom EFI and forced induction project
'83 Porsche 944 2.5L - Sold
'78 Porsche 924NA 2.0L - RIP
AznDrgn is offline  
post #8 of 15 Old 12-24-2006, 04:18 PM Thread Starter
m1a convert
Registered User
 
Join Date: Nov 2006
Location: Idaho
Posts: 105
Quote:
Another related question, Why does every one hate the disco axles so much, seems like the easiest way to have a selectable locker. Weld the spider gears and then run a cable to the selector fork
This seems like a good idea. Anyone doing it?

So if I have a non-disco axle and a locker the front driveline would spine constantly?

If I have a selectable locker having a non-disco without hubs wouldn't matter one bit, right?

How hard is it to add hubs to a HP30?
m1a convert is offline  
post #9 of 15 Old 12-25-2006, 07:57 PM
lectrode
Registered User
 
lectrode's Avatar
1987 XJ Cherokee 
 
Join Date: Oct 2004
Location: Southwest Oklahoma
Posts: 361
Quote:
Originally Posted by Et3rnal 360
The disconnect axle has a 2 piece shaft on the right side, the non-disconnect doesn't. The disconnect axle is a pos IMO.
But don't the disconnect axle have the weaker u-joints?Thats what I'm fighting
with now,I just busted my right axle u-joint on my disconnect axle.
And the only way to upgrade to the 297 is to go with certain non-disconnect axles.
lectrode is offline  
post #10 of 15 Old 12-25-2006, 08:15 PM
AznDrgn
Registered User
 
Join Date: Feb 2005
Location: Harrisonburg, Va.
Posts: 1,020
Quote:
Originally Posted by LECTRODE
But don't the disconnect axle have the weaker u-joints?Thats what I'm fighting
with now,I just busted my right axle u-joint on my disconnect axle.
And the only way to upgrade to the 297 is to go with certain non-disconnect axles.

With the disconnect axle I doubt the U-joint is even a concern the collar that locks the shafts together is probably a weaker point than the joint.

'87 Jeep Cherokee Laredo 4.0L, NP231, AW4, 5.5" lift, s10/waggy/XJ bastard pack, 7" fabtech TJ coil springs - Weekend play thing
'83 Porsche 944 2.5L Callaway turbo - Daily driver
'81 Porsche 924 - Custom EFI and forced induction project
'83 Porsche 944 2.5L - Sold
'78 Porsche 924NA 2.0L - RIP
AznDrgn is offline  
post #11 of 15 Old 12-25-2006, 08:20 PM Thread Starter
m1a convert
Registered User
 
Join Date: Nov 2006
Location: Idaho
Posts: 105
Quote:
Your TJ shouldn't have a disconnect front axle.
So my TJ doesn't have a disconnect?

So both axle shafts spin constantly?

Is this why having a full-time locker in a TJ isn't such a good idea, because then the driveline spins constantly?
m1a convert is offline  
post #12 of 15 Old 12-25-2006, 08:25 PM
AznDrgn
Registered User
 
Join Date: Feb 2005
Location: Harrisonburg, Va.
Posts: 1,020
Quote:
Originally Posted by m1a convert
So my TJ doesn't have a disconnect?

So both axle shafts spin constantly?

Is this why having a full-time locker in a TJ isn't such a good idea, because then the driveline spins constantly?
I'm almost 100% sure that TJ's never shipped with the disconnect front axle but you can verify this by looking on the passenger side of the axle tube and seeing if there is a box mounted to the tube. If you have a non disconnect axle then the yes both shafts spin constantly as does your front drive shaft from the TC. Full time front locker is not a good idea because of the previous statement.

'87 Jeep Cherokee Laredo 4.0L, NP231, AW4, 5.5" lift, s10/waggy/XJ bastard pack, 7" fabtech TJ coil springs - Weekend play thing
'83 Porsche 944 2.5L Callaway turbo - Daily driver
'81 Porsche 924 - Custom EFI and forced induction project
'83 Porsche 944 2.5L - Sold
'78 Porsche 924NA 2.0L - RIP
AznDrgn is offline  
post #13 of 15 Old 12-25-2006, 09:32 PM Thread Starter
m1a convert
Registered User
 
Join Date: Nov 2006
Location: Idaho
Posts: 105
I looked. No box for a disconnect.

Sweet!!!

So, all I need is a Warn hub conversion kit and I am good to go?

What kind of increase in gas mileage will I see with the installation of the kit?
m1a convert is offline  
post #14 of 15 Old 12-25-2006, 09:42 PM
AznDrgn
Registered User
 
Join Date: Feb 2005
Location: Harrisonburg, Va.
Posts: 1,020
Quote:
Originally Posted by m1a convert
I looked. No box for a disconnect.

Sweet!!!

So, all I need is a Warn hub conversion kit and I am good to go?

What kind of increase in gas mileage will I see with the installation of the kit?
If you are doing hubs for a gas mileage increase don't bother, if you get any increase at all it'll be minimal.

'87 Jeep Cherokee Laredo 4.0L, NP231, AW4, 5.5" lift, s10/waggy/XJ bastard pack, 7" fabtech TJ coil springs - Weekend play thing
'83 Porsche 944 2.5L Callaway turbo - Daily driver
'81 Porsche 924 - Custom EFI and forced induction project
'83 Porsche 944 2.5L - Sold
'78 Porsche 924NA 2.0L - RIP
AznDrgn is offline  
post #15 of 15 Old 12-26-2006, 09:46 AM
conrasm
Registered User
 
conrasm's Avatar
2000 TJ Wrangler 
 
Join Date: Aug 2004
Location: Pittsburgh, PA
Posts: 3,808
Mileage increase 1-2 mpg at best. Hardly a reason to spend the $1200 for the warn kit.

You will gain 30 spline outer stub shafts and if you break something in the front axle, you will cause less damage to the remaining drivetrain by being able to disconnect the entire axle assembly from the spinning tire for the ride home.

Shawn
'00 TJ Sahara (RC 4" LA kit)
'06 Grand Cherokee Limited
'07 Ram 1500 quad cab
Heritage Region Jeep Alliance
conrasm is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail address for yourself.



Email Address:
OR

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.




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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Disconnect clockspring trombone00 XJ Cherokee Technical Forum 8 01-07-2009 09:28 PM
Disconnect Airbag? BLDavis XJ Cherokee Technical Forum 5 05-12-2008 01:06 AM
JKS Disconnect mounting. krzcwby XJ Cherokee Technical Forum 1 05-07-2006 10:53 PM
Vac disconnect MOD lifted_laredo XJ Cherokee Technical Forum 5 01-20-2006 08:26 AM
Vac axle disconnect DirtyCommanche XJ Cherokee Technical Forum 5 09-12-2005 10:27 AM

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