LOST JEEPS :: View topic - Rear/ Front Diff Question

How can I tell if my rear/ front differentials are Limited-slip? I had a Pathfinder that had "LSD" on a stamped chrome plate on it, so that was easy, but I don't see anything on this one.

I have a 2006 with a 12/2005 build date.

No front axles were limited slip in a KJ. I've often wondered however, if a quadra-drive I front differential from a WJ Dana 30 front will fit in a KJ Dana 30 independent...

Speaking of Diff Oil/Lube, I have found the RedLine, Heavy Shock Proof gear oil to be amazing. I thought I was imagining things, but once it was replaced the truck felt smoother on the highway. It is a full synthetic so you can get some good distance out of it. Just figure I'd share my experience with it since I was impressed with how it felt.

http://www.redlineoil.com/products_gear ... egoryID=16

I used the HEAVY SHOCK Proof. Haven't had any issues. Used in the transfer case and in the rear diff. I use it off road every weekend now that it's the summer and have had no problems to report.

Author:	linewarbr [ Wed Jul 01, 2009 4:33 pm ]
Post subject:	Rear/ Front Diff Question
How can I tell if my rear/ front differentials are Limited-slip? I had a Pathfinder that had "LSD" on a stamped chrome plate on it, so that was easy, but I don't see anything on this one. I have a 2006 with a 12/2005 build date.

Author:	durangotang [ Wed Jul 01, 2009 5:01 pm ]
Post subject:
Easiest way: jack up the axles and turn one wheel. If the other one turns the same way--> limited slip... opposite way-->open.

Author:	Joe Romas [ Wed Jul 01, 2009 6:35 pm ]
Post subject:	Re: Rear/ Front Diff Question
linewarbr wrote: How can I tell if my rear/ front differentials are Limited-slip? I had a Pathfinder that had "LSD" on a stamped chrome plate on it, so that was easy, but I don't see anything on this one. I have a 2006 with a 12/2005 build date. Easy here too Your 06 has ESP and there was not a limited slip option available

Author:	danoid [ Wed Jul 01, 2009 9:32 pm ]
Post subject:
Even the first 'easy way' may not be conclusive. The clutch pack in the rear of '05s with limited slip tends to lose preload. That means it only is really limited slip under high torque conditions, spinning in the air may not work. Also a caution, only spin the (lifted both wheels) rear with the t-case in 2WD. I forgot mine was in full time once, torqued down, and the front tires promptly drove the whole car off the jack stands. DOH! No front axles were limited slip in a KJ. I've often wondered however, if a quadra-drive I front differential from a WJ Dana 30 front will fit in a KJ Dana 30 independent...

Author:	Sir Sam [ Wed Jul 01, 2009 10:03 pm ]
Post subject:
danoid wrote: No front axles were limited slip in a KJ. I've often wondered however, if a quadra-drive I front differential from a WJ Dana 30 front will fit in a KJ Dana 30 independent... I'm pretty sure it will not.

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Author:	linewarbr [ Thu Jul 02, 2009 8:00 am ]
Post subject:
Thanks for the help. It's time to change the diff oil, just trying to dot my t's and cross my i's, dontcha know. . .

Author:	NJCRD [ Thu Jul 02, 2009 9:48 am ]
Post subject:
Speaking of Diff Oil/Lube, I have found the RedLine, Heavy Shock Proof gear oil to be amazing. I thought I was imagining things, but once it was replaced the truck felt smoother on the highway. It is a full synthetic so you can get some good distance out of it. Just figure I'd share my experience with it since I was impressed with how it felt. http://www.redlineoil.com/products_gear ... egoryID=16

Author:	linewarbr [ Thu Jul 02, 2009 11:48 am ]
Post subject:
NJCRD wrote: Speaking of Diff Oil/Lube, I have found the RedLine, Heavy Shock Proof gear oil to be amazing. I thought I was imagining things, but once it was replaced the truck felt smoother on the highway. It is a full synthetic so you can get some good distance out of it. Just figure I'd share my experience with it since I was impressed with how it felt. http://www.redlineoil.com/products_gear ... egoryID=16 I heard that this stuff is not API certified, is that correct? And which one do you use, the "Heavy Shockproof"?

Author:	NJCRD [ Thu Jul 02, 2009 2:19 pm ]
Post subject:
I used the HEAVY SHOCK Proof. Haven't had any issues. Used in the transfer case and in the rear diff. I use it off road every weekend now that it's the summer and have had no problems to report. Look at it this way; anything is better then what it left the factory with. I know everyone has a particular brand that they recommend or like; I’m just letting everyone know my experience with it has been pleasant. Found this link on their site: http://www.redlineoil.com/whitePaper/11.pdf http://www.redlineoil.com/msds/55.pdf

Author:	Joe Romas [ Thu Jul 02, 2009 3:02 pm ]
Post subject:
NJCRD wrote: I used the HEAVY SHOCK Proof. Haven't had any issues. Used in the transfer case and in the rear diff. I use it off road every weekend now that it's the summer and have had no problems to report. The fluid in the transfer case is very different then what's in the differentials Jeep calls for ATF

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