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How do I know if I have a Trac-Lok Diff?
http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=11834
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Author:  jonb [ Mon Aug 28, 2006 9:45 am ]
Post subject:  How do I know if I have a Trac-Lok Diff?

I bought my 2005 Limited in April & it's due for a front & rear diff fluid change. Is there any way I can tell if the rear is a Trac-Lok? Wouldn't want to screw it up by excluding the friction modifier if it is.

Thanks everyone,

jonb
2005 Limited, maybe with trak-loc???

Author:  2006KJSPORT4x4 [ Mon Aug 28, 2006 10:30 am ]
Post subject: 

You can get a build sheet of your KJ from Chrysler by either visiting the dealer and giving them the last 8 digits of your VIN# or going to Jeep.com..owner services and you can shoot them an e-mail requesting a build sheet...hope that helps...

Author:  jason thompson [ Mon Aug 28, 2006 6:59 pm ]
Post subject: 

look at the rer diff if you have trac loc it will have 2 tags 1 is the axel ID tag the other is the trac loc tag and has the fluid type on it
These 2 tags are metal and are held on by the diff cover bolts

If you post up a good pic I can tell you what you got

Author:  jonb [ Wed Aug 30, 2006 2:21 pm ]
Post subject:  Trac-Lok or Not

Thanks guys - here's what I got from Canadian Jeep customer assistance:

"Regrettably, build sheets are not available for reprint. However,
specific questions regarding original equipment of your vehicle can be
researched.
Basic information regarding your vehicle includes:
3.7 L V6 engine
4-Spd. Automatic Transmission
Selec-Trac Full Time 4WD System
Dana 30/186MM Front Axle
3.73 Axle Ratio
Corporate 8.25 Rear Axle
Our records indicate that your vehicle is equipped with Anti-Spin
Differential Rear Axle."

However - there are no metal tags on the diff, so I maybe I'm back at square 1?? Should I believe their email & put in the friction modifier? - will it harm the diff if it's not a trac-lok??
I'm Confused

Author:  jeepkj02 [ Wed Aug 30, 2006 2:26 pm ]
Post subject: 

On my rear diff, they is a sticker on the right side axle tube by the brakes. It tells you what you got. "3.73 OPEN" means you have 3.73 gears and an open diff.

Author:  gone_jeepin [ Wed Aug 30, 2006 2:30 pm ]
Post subject: 

thats crazy!!!! DC sent me a build sheet with everything i would ever want to know about my KJ!! the last "anti-slip diff rear axle" would make me think yours has the trac-lok, because my build sheet said nothing like that!!

Author:  streetKJ [ Wed Aug 30, 2006 9:09 pm ]
Post subject:  Re: Trac-Lok or Not

jonb wrote:
Thanks guys - here's what I got from Canadian Jeep customer assistance:

"Regrettably, build sheets are not available for reprint. However,
specific questions regarding original equipment of your vehicle can be
researched.
Basic information regarding your vehicle includes:
3.7 L V6 engine
4-Spd. Automatic Transmission
Selec-Trac Full Time 4WD System
Dana 30/186MM Front Axle
3.73 Axle Ratio
Corporate 8.25 Rear Axle
Our records indicate that your vehicle is equipped with Anti-Spin
Differential Rear Axle."

However - there are no metal tags on the diff, so I maybe I'm back at square 1?? Should I believe their email & put in the friction modifier? - will it harm the diff if it's not a trac-lok??
I'm Confused


The metal tag isnt on the diff. It's near the end of the axle, usually near the rear right tire side.

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