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Unread 08-10-2013, 11:04 PM   #1
Luuca
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Chrys 8.25 LSD?

Today I could not pass up buying our new 92 XJ. It has a factory Chrysler 8,25 rear end. The seller stated it was a limited slip diff, but nothing I have found here says it could be. Anyone know if these 8.25s were ever produced in a LSD configuration?

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Unread 08-10-2013, 11:05 PM   #2
CJ7-Tim
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Yes, the Chry 8.25 was available with optional LS.
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Unread 08-10-2013, 11:13 PM   #3
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Quote:
Originally Posted by CJ7-Tim View Post
Yes, the Chry 8.25 was available with optional LS.
Thank you!! I'm doing a complete fluids service and that's important when selecting the rear diff fluid. If I jack up one side of the rear, and spin the tire, it should produce some friction - Correct? Or is there a better way to confirm the LSD?
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Unread 08-10-2013, 11:21 PM   #4
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If its a lsd when you jack it up and hand spin the tire the opposite side tire will turn in the same direction.

If the opposite tire turns the other direction its an open diff,
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Unread 08-10-2013, 11:41 PM   #5
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Originally Posted by X-Rated View Post
If its a lsd when you jack it up and hand spin the tire the opposite side tire will turn in the same direction.

If the opposite tire turns the other direction its an open diff,
Sweet! Thanks again! I knew there was some way to confirm it.
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Unread 08-10-2013, 11:52 PM   #6
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No problem
Hope you have the lsd, its a pretty good unit and congrats on your new XJ!
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Unread 08-11-2013, 01:46 AM   #7
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Easier to find a patch of grass and hit the skinny pedal.

one tire mark = no LSD

two tire marks = LSD.
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Unread 08-11-2013, 02:45 AM   #8
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If you're changing the fluids, you'll be removing the diff. covers. My '01 XJ came from the factory with a Chrysler 8.25 Trac-Lok(Limited slip). What I've learned about digital cameras is, that you'll take pictures of crap you would have never wasted film on before. With that in mind. Here's a picture of the front and rear diffs. on my XJ. Again, the rear is a Chrysler 8.25 limited slip(2001). You could also have a Chrysler/Jeep dealer run your VIN, and they could tell you what it came with from the factory.
xj-diffs-reduced.jpg

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Unread 08-11-2013, 03:57 AM   #9
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Quote:
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Easier to find a patch of grass and hit the skinny pedal.

one tire mark = no LSD

two tire marks = LSD.
Sounds pretty destructive just to avoid popping the cover.
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Unread 08-11-2013, 05:22 AM   #10
bobthecatkiller
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Quote:
Originally Posted by Anticanman

Sounds pretty destructive just to avoid popping the cover.
Not really... It's not like he said to do it on pavement.
Also I had a Sticker in my glove box
image-3786506448.jpg

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Unread 08-11-2013, 07:43 AM   #11
CJ7-Tim
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Most xJ's with factory installed LS had a sticker on the glove box and a tag on the differential cover. My 2000 with LS had neither sticker nor axle tag when I bought it. Over time one or both can become lost.

A quick burn-out on grass or dirt should show what diff you have. If you still are not sure, buy a bottle of Limited Slip Friction Modifier and look inside when you change the gear oil.


Open diff on the left, Limited Slip on the right.

.
limited-slip-id-tag.jpg

open-limited.jpg

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Unread 08-11-2013, 07:59 AM   #12
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I have a 97 with the open 8.25. Just got my lsd carrier to do a swap. I'm stoked. Got my XJ last winter and every time I went to pull out onto the main drag I'd be on half ice and half dry pavement. I'd have to throw it into 4H just to avoid getting hit, or if no one was coming, then I could do a 1 legger til I hit pavement and shock the hell out of my drivetrain... well, this winter'll be different, that's for sure.
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