Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2007 - 2014 Expedition & Navigator
Sign in using an external account
Register Forgot Password?


2007 - 2014 Expedition & Navigator 2007, 2008, 2009, 2010, 2011, 2012, 2013 and 2014 Ford Expedition and Lincoln Navigator

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 03-22-2009, 08:29 AM
ron570 ron570 is offline
New User
 
Join Date: Mar 2009
Posts: 7
ron570 is starting off with a positive reputation.
limited slip rear

Is there a limited slip differential option on the 2008 Expedition, or standard with one of the axle ratios?
Reply With Quote
  #2  
Old 03-22-2009, 09:51 AM
clearnetedm clearnetedm is offline
Junior User
 
Join Date: Jan 2009
Location: Alberta
Posts: 66
clearnetedm is starting off with a positive reputation.
No the only option is the non-limited-slip 3.73 axle for the EL and 3.31 for standard Expy. Unless your asking aftermarket?
Reply With Quote
  #3  
Old 03-22-2009, 10:55 AM
chuck s chuck s is offline
Elder User
 
Join Date: Jan 2008
Location: Broadview Hts, Ohio
Posts: 512
chuck s is starting off with a positive reputation.
I think limited slip interferes with RSC etc.

-- Chuck
Reply With Quote
  #4  
Old 03-22-2009, 09:19 PM
montecarlo31 montecarlo31 is offline
Elder User
 
Join Date: Sep 2004
Posts: 552
montecarlo31 is starting off with a positive reputation.
Yes a LSD is an option but must be ordered with the Limo conversion package. Not sure why you can only get with the limo package.
Reply With Quote
  #5  
Old 03-22-2009, 11:00 PM
clearnetedm clearnetedm is offline
Junior User
 
Join Date: Jan 2009
Location: Alberta
Posts: 66
clearnetedm is starting off with a positive reputation.
Chuck I think your are correct. A mechanic friend actually indicated to me the term (non)limited slip is sometime also referred to a electronic limited slip dif, in Ford's case anyways. Whereas the abs and other systems monitor for slip and apply braking power to the slipping wheel up to 50%. This is what the EXPY uses and I believe is part of the tag AdvancTrac with RSC. I'm not sure why the limo package gets the true limited slip option. Perhaps the limo packaged doesn't come with the AdvancTrac with RSC option and thus needs the limited slip diff??
Reply With Quote
  #6  
Old 03-23-2009, 07:11 AM
benshere benshere is offline
Elder User
 
Join Date: Oct 2005
Location: Longwood, Fl
Posts: 988
benshere is starting off with a positive reputation.
I am curious why they say Limited slip is not compatable with the RSC. If LS keeps one wheel from spinning, then the RSC would not even come into play. Maybe it has to do with the vehicle being corrected in the event of bad swerving by the RSC applying brakes to one side or the other to stop swerving.

I still dont see a problem if the LS is not a clutch type or locker. A Gleason or some "geared" LS would allow one wheel to spin faster/slower with brake apply by RSC.

We looked for a 4X4, couldnt find one at the time we were looking so we settled for a 2X4. I would at least like to have a LS (General term, not a specific type) that would hold better than the RSC.

Anyone got an idea?
Reply With Quote
  #7  
Old 03-23-2009, 08:32 AM
montecarlo31 montecarlo31 is offline
Elder User
 
Join Date: Sep 2004
Posts: 552
montecarlo31 is starting off with a positive reputation.
Quote:
Originally Posted by benshere View Post
I am curious why they say Limited slip is not compatable with the RSC. If LS keeps one wheel from spinning, then the RSC would not even come into play. Maybe it has to do with the vehicle being corrected in the event of bad swerving by the RSC applying brakes to one side or the other to stop swerving.

I still dont see a problem if the LS is not a clutch type or locker. A Gleason or some "geared" LS would allow one wheel to spin faster/slower with brake apply by RSC.

We looked for a 4X4, couldnt find one at the time we were looking so we settled for a 2X4. I would at least like to have a LS (General term, not a specific type) that would hold better than the RSC.

Anyone got an idea?

I noticed your in longwood, I'm up in Tampa and you'll find that down here you'll rarely need 4wd, even on the beaches with the new traction control. I went on a couple of jobsites in 2wd where I would have been done in most cars/trucks but believe it or not the expedition kept on pulling. traction control moaning away.
Reply With Quote
  #8  
Old 03-23-2009, 12:30 PM
benshere benshere is offline
Elder User
 
Join Date: Oct 2005
Location: Longwood, Fl
Posts: 988
benshere is starting off with a positive reputation.
Yea, you are right! Off-road to me is the part between the parking lot and the boat ramp . Kinda would like the extra insurance of LS (TL/locker etc). Been a long since I launched at the ramp on Ft. Desoto state park----if its still there!
Reply With Quote
Old 03-23-2009, 12:30 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
limited slip oil ? Grogtronics Oil & Lubrication 7 09-09-2008 09:14 PM
Limited Slips txflyyaker 2004 - 2008 F150 18 05-19-2006 12:52 AM
limited slip problems brncobilly 1978 - 1996 Big Bronco 5 02-24-2002 10:33 PM
Limited Slip vs. non-limited slip Vaccuum Super Duty & Heavy Duty 5 09-28-2001 06:28 PM
TracTech Limited Slip proeliator Offroad & 4x4 1 08-29-2001 05:55 PM


Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2007 - 2014 Expedition & Navigator

Tags
advanctrac, control, expedition, ford, problem, traction

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up





All times are GMT -5. The time now is 06:40 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup