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Old 10-02-2010, 02:59 PM   #1
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standard or tracloc Diff?

How can one tell if the differential is tracloc?

I have a '98 TJ Sport. The Diffs look stock.

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Old 10-02-2010, 03:20 PM   #2
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Quote:
Originally Posted by trustnoone
How can one tell if the differential is tracloc?

I have a '98 TJ Sport. The Diffs look stock.
Your local jeep dealer can look up the vin number and tell you.

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Old 10-02-2010, 03:23 PM   #3
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My 99 has a metal tag on the diff. and a decal in the glove box.
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Old 10-02-2010, 03:27 PM   #4
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What I've heard is if you jack up the rear end and spin a rear tire (in neutral), the opposite side on an open rear-end will spin the opposite direction as the tire you're spinning whereas one with limited slip (trac-loc) or a locker will spin the same direction.

Or...just crawl under your Jeep and on the differential, there should be a metal tag with your gear ratio stamped on it. Either on that tag or another spot around there, I've been told it'll say LSD or Trac-Loc or SOMETHING telling you it's a limited-slip differential since an owner needs to know when they change their gear oil (Trac-loc differentials require friction modifier to be added to the new gear oil).
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Old 10-02-2010, 10:07 PM   #5
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my tag says to use only limited slip oil so I am thinking this is trac-loc.
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Old 10-02-2010, 10:11 PM   #6
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Yup, it would be...open rear doesn't need any additives to the oil.

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