JK front axle LS? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > JK Wrangler Technical Forum > JK front axle LS?

Stainless Steel Door Hinge PinsPoly Door Hinge BushingsDisc Brake Kits from ECGS

Reply
Unread 03-07-2007, 12:57 PM   #1
greggradwohl
Registered User
 
Join Date: Oct 2005
Posts: 159
JK front axle LS?

I am getting a JK unlimited - probably an X.
Going to get lift/tires/gears. While I am screwing with the gears (4.56) I am thinking about adding an LS - probably trutrac - up front (assuming a D30 27 spline).

Would an LS up front screw up the ESP or any other computer related stuff?

greggradwohl is offline   Reply With Quote
Unread 03-07-2007, 04:49 PM   #2
redrom01
JCOB-4-LIFE
 
redrom01's Avatar
2007 JK Wrangler 
 
Join Date: Aug 2004
Location: Gardner, MA
Posts: 480
I beleive that new D30 has a bigger spline than 27. 30 spline or 32 spline I'm not sure.
__________________
-Jeep History-
1992 XJ - '00 till '04 - RIP (thanks alot dave)
1995 XJ - '03 till '07 - Sold to the HUB

______o00o
/__l_l_,\____\,__
l_---l_l__l----[ ]llllll[ ]
._(o)_)__(o)_)--o-)_)__

-Current Jeep-
2007 JK Rubi (Steel Blue)
Searching for an MJ

|¯¯l,[___],
l---L--OlllllllO¬
=~~~==oo==
()_) ()_)--<>-)_)
redrom01 is offline   Reply With Quote
Unread 03-07-2007, 05:14 PM   #3
igofshn
Locked @ both ends
 
igofshn's Avatar
 
Join Date: Oct 2001
Location: Lemoore, CA
Posts: 7,775
Quote:
Originally Posted by redrom01
I beleive that new D30 has a bigger spline than 27. 30 spline or 32 spline I'm not sure.
Carrier is the same, it is still 27 spline, the outers are 32 spline. I talked with the Detroit rep at TDS, he said the diffs are the same, you might need to drill out the bolt holes because he said they were 7/16 instead of 3/8.
__________________
2007, 4 door, powered by a minivan engine, locked and riding on 35's.


[Jeep Pics
igofshn is offline   Reply With Quote
Unread 03-07-2007, 05:23 PM   #4
Karamba
Registered User
 
Join Date: May 2006
Location: California
Posts: 559
Quote:
Originally Posted by greggradwohl
I am getting a JK unlimited - probably an X.
Going to get lift/tires/gears. While I am screwing with the gears (4.56) I am thinking about adding an LS - probably trutrac - up front (assuming a D30 27 spline).

Would an LS up front screw up the ESP or any other computer related stuff?
Why would you want LSD up front, when you already have a perfectly functional electronic limited slip - which handles much better then a mechanical LSD off and on road.
Karamba is offline   Reply With Quote
Unread 03-07-2007, 05:33 PM   #5
Bamoman
Registered User
2007 JK Wrangler 
 
Join Date: Feb 2007
Location: Texas
Posts: 533
Quote:
Originally Posted by Karamba
Why would you want LSD up front, when you already have a perfectly functional electronic limited slip - which handles much better then a mechanical LSD off and on road.
he said he alrdy had one? where did he say that?

Bamo
Bamoman is offline   Reply With Quote
Unread 03-07-2007, 05:49 PM   #6
redrom01
JCOB-4-LIFE
 
redrom01's Avatar
2007 JK Wrangler 
 
Join Date: Aug 2004
Location: Gardner, MA
Posts: 480
Quote:
Originally Posted by Karamba
Why would you want LSD up front, when you already have a perfectly functional electronic limited slip - which handles much better then a mechanical LSD off and on road.
Not sure but I was under the assumption that the traction control system with electronic limited slip was only in the rear axle. Again I'm not sure about that.
__________________
-Jeep History-
1992 XJ - '00 till '04 - RIP (thanks alot dave)
1995 XJ - '03 till '07 - Sold to the HUB

______o00o
/__l_l_,\____\,__
l_---l_l__l----[ ]llllll[ ]
._(o)_)__(o)_)--o-)_)__

-Current Jeep-
2007 JK Rubi (Steel Blue)
Searching for an MJ

|¯¯l,[___],
l---L--OlllllllO¬
=~~~==oo==
()_) ()_)--<>-)_)
redrom01 is offline   Reply With Quote
Unread 03-08-2007, 02:40 PM   #7
Karamba
Registered User
 
Join Date: May 2006
Location: California
Posts: 559
Quote:
Originally Posted by redrom01
Not sure but I was under the assumption that the traction control system with electronic limited slip was only in the rear axle. Again I'm not sure about that.
Electronic limited slip (part of the traction control) runs both axels AFAIK. And it apparently works quite well. I would think that this makes the mechanical limited slip in front to be somewhat redundant. Electronic stuff should have none of the handling drawbacks as well.
Karamba is offline   Reply With Quote
Unread 03-08-2007, 02:41 PM   #8
Karamba
Registered User
 
Join Date: May 2006
Location: California
Posts: 559
Quote:
Originally Posted by Bamoman
he said he alrdy had one? where did he say that?
Bamo
It comes with it from the factory - all trims have traction control, that includes the brake activated electronic limited slip functionality.
Karamba is offline   Reply With Quote
Unread 03-08-2007, 10:29 PM   #9
SecondTJ
Registered User
2000 TJ Wrangler 
 
Join Date: Sep 2006
Location: Illinois
Posts: 5,321
If they make one that will work in the new JK, go for it It'll be an improvement over the esp

Quote:
Originally Posted by Karamba
Electronic stuff should have none of the handling drawbacks as well.
A truetrac has no bad on-road characteristics. It is invisible, you can't tell its there. There are no drawbacks.
__________________
'00 Sport. 5-speed, Detroit TrueTrac Dana 44 rear, Detroit TrueTrac front, 4.10's, 2" RE BB, OME shocks, 31" BFG MT, JKS Quicker Disco's, Borla

'99 Z28 M6, some goodies
'94 'Vette, A4 all stock
SecondTJ is offline   Reply With Quote
Unread 03-09-2007, 11:52 AM   #10
Karamba
Registered User
 
Join Date: May 2006
Location: California
Posts: 559
Quote:
Originally Posted by SecondTJ
It is invisible, you can't tell its there.

Indeed - with electronics taking care of it it will never be activated.

(Seriously though, I do not know how they will interact - who will run first, but after observing how the brake actuated stuff works, I would not care about mechanical limited slip at all. When brake actuated is not enough, you already can make use of a a full locker..)
Karamba is offline   Reply With Quote




Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.