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Unread 01-06-2014, 10:16 AM   #16
jeepjeepster
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Join Date: Dec 2004
Location: , Ky
Posts: 2,052
You've simply got a bad VC. The VC can fail in two ways, it either fails locked or it fails unlocked. The fluid can permanently lock the plates together or the plates in the VC can 'polish' so that the fluid wont lock them together. Its a good design, but its destined to fail. Just a question of when and how. Most people probably wont realize when they fail 'open.'

The 96+ 249 sends power to the rear until the rear slips (I've read a 10/90 split), then the VC starts locking up to send power to the front wheels. A pre 96 249 sends out a 50/50 split until either the front or rear starts slipping, then the VC starts locking the two together.

I have a 94 zj with a failed 'open' VC. Meaning just the rear or front can spin. I also have a 98 5.9 with a failing 'closed' vc. It doesn't chirp the tires but you can feel it binding at low speeds. Not sure if Im going to spend $800+ to fix the VC's. Most certainly NOT putting in a 242 or 231.



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Unread 01-06-2014, 10:49 AM   #17
PolkaPower
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1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss, MD
Posts: 16,040
Quote:
Originally Posted by jeepjeepster View Post
You've simply got a bad VC. The VC can fail in two ways, it either fails locked or it fails unlocked. The fluid can permanently lock the plates together or the plates in the VC can 'polish' so that the fluid wont lock them together. Its a good design, but its destined to fail. Just a question or when and how. Most people probably wont realize when they fail 'open.'

The 96+ 249 sends power to the rear until the rear slips (I've read a 10/90 split), then the VC starts locking up to send power to the front wheels. A pre 96 249 sends out a 50/50 split until either the front or rear starts slipping, then the VC starts locking the two together.

I have a 94 zj with a failed 'open' VC. Meaning just the rear or front can spin. I also have a 98 5.9 with a failing 'closed' vc. It doesn't chirp the tires but you can feel it binding at low speeds. Not sure if Im going to spend $800+ to fix the VC's. Most certainly NOT putting in a 242 or 231.

I spent 320 for my VC plus a few tools.
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Unread 01-06-2014, 10:51 AM   #18
JasonStebbins
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1997 ZJ 
 
Join Date: Jan 2009
Posts: 3,138
Quote:
Originally Posted by jeepjeepster View Post
You've simply got a bad VC.
Interesting. Didn't know they could get stuck unlocked.

Quote:
Originally Posted by PolkaPower View Post
I spent 320 for my VC plus a few tools.
Snap ring pliers.
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Unread 01-06-2014, 12:37 PM   #19
jeepjeepster
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Location: , Ky
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Quote:
Originally Posted by PolkaPower View Post
I spent 320 for my VC plus a few tools.
Ebay?

Ive got two bad VC's. So $640.... I was guessing at $800 for both, Ive always read $400 a piece.

Snap ring pliers all you needed?
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Unread 01-06-2014, 12:44 PM   #20
PolkaPower
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1998 ZJ 
 
Join Date: Aug 2011
Location: The Abyss, MD
Posts: 16,040
Quote:
Originally Posted by jeepjeepster View Post
Ebay?

Ive got two bad VC's. So $640.... I was guessing at $800 for both, Ive always read $400 a piece.

Snap ring pliers all you needed?
Yea I got it from transpartswarehouse on ebay. I called them up and ordered. Sound like nice guys. Been fine for over two years or 11,000 miles.

I didn't drop the case so I had to make a custom tool because there was no room. Once I got the tail cone off the snap ring pliers are a must. If you drop the case then the pliers will work through the view port to get to the main snap ring. For that snap ring, duck billed snap ring pliers would work best.
Here is my thread on it. http://www.jeepforum.com/forum/f13/r...249-a-1275779/
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Unread 01-06-2014, 03:40 PM   #21
pageman
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1995 ZJ 
 
Join Date: Sep 2013
Location: fort myers, florida
Posts: 182
Hey just so you know i bought a vc from them and within 1k miles went bad. Called them and they told mr since i wasent a local shop they could trust they could not replace mine.... so after getting stiffed 350 for the vc im a t case swap advocate
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Unread 01-07-2014, 08:10 PM   #22
Compgeek789
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1994 ZJ 
 
Join Date: Jul 2011
Location: Conway, New Hampshire
Posts: 196
If I were you, I would call an attorney
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RIP 1994 ZJ 5.2
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Unread 01-28-2014, 11:27 AM   #23
ElHefe2000
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1998 ZJ 
 
Join Date: Jan 2010
Location: Altoona
Posts: 20
Well, it ended up that I blew my front differential, lots of broken teeth & sheared bolts. Ordering new Dana 30 parts today.
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Because you thought of a video game with some guy in a peter pan outfit instead of a kick *** monster movie with Arnold and Jesse Ventura.
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Unread 01-28-2014, 11:49 AM   #24
PolkaPower
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1998 ZJ 
 
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Location: The Abyss, MD
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Originally Posted by ElHefe2000 View Post
Well, it ended up that I blew my front differential, lots of broken teeth & sheared bolts. Ordering new Dana 30 parts today.
I wouldn't bother rebuilding that. D30's are a dime a dozen at the junk yards. It would be cheaper to just go get one, clean it up, and slap it in than to have a shop rebuild the front.
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