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-   -   How do I tell if I have a limited slip differential? (http://www.jeepforum.com/forum/f11/how-do-i-tell-if-i-have-limited-slip-differential-1443947/)

who_datjeep 11-29-2012 01:43 PM

How do I tell if I have a limited slip differential?
 
I know that if raise the vehicle and the tires go in the same direction it's limited slip. I know that if you open up the differential cover and compare it with pictures of limited and open differentials you can find out what you have. Right now, I don't have any jacks with me. I'd like to be able to buy the right differential fluid before I open it up. There are remnants of a sticker on the inside side of the glovebox door but you can no longer tell what it said. I didn't see any tag on the differential cover, maybe somebody took it off or it fell off when they changed the differential fluid. Is there any other way in the meantime I can tell if my XJ has a rear limited slip differential?

GetLifted 11-29-2012 01:49 PM

Find some dirt and throttle down. :laugh:

ThaSkippah 11-29-2012 03:16 PM

^^ Pretty much. When I jacked the rear end of mine up and tested it, the wheels spun oppositely indicating either no LSD, or a bad one. I popped the rubber plug out of the diff and got a nice galaxy of metal shavings in my gear oil. At this point I decided it really didn't matter what oil I ran as long as it was the right viscosity. Runs great. If you pull the plug out and its got a ton of flakes in it, you could just replace the gear oil and not add friction modifier, seeing how its already on its way out. I know this is not a scientific answer, but even if the rear diff is in 'galaxy' condition itll still run smoother with new oil. Sorry thats the best i've got.

sAe23 11-29-2012 05:00 PM

Quote:

Originally Posted by GetLifted (Post 14527060)
Find some dirt and throttle down. :laugh:

Make sure you have a helper looking for rooster tails :thumbsup:

who_datjeep 11-29-2012 07:18 PM

Thanks. Will do!

foggybottombob 11-29-2012 07:51 PM

post a picture when you can. It would take me about 1 second to ID a posi from any likely Cherokee axle. I'm sure that there are another dozen guys who can do it in half a second.

who_datjeep 11-29-2012 08:25 PM

Rear Differential

jjshbetz11 11-29-2012 09:52 PM

If there is a sticker in your glovebox then yes, it should say if has posi and warning about putting it on jack stands or something

sent from a flat black thingie

who_datjeep 11-29-2012 09:59 PM

There are remains of a sticker. That is the problem.

jjshbetz11 11-29-2012 10:01 PM

If memory serves me correct its metallic with red writing if that helps

sent from a flat black thingie

who_datjeep 11-29-2012 10:03 PM

Thanks but I mean it is just white paper that was stuck from the adhesive like somebody pulled it off. It is towards the driver side of the glovebox door outside of the actual storage compartment. There is no lettering visible.

jjshbetz11 11-29-2012 10:16 PM

Just pull the diff cover and do a fluid change while your at it, kill two birds

sent from a flat black thingie

sAe23 11-30-2012 03:44 AM

Quote:

Originally Posted by jjshbetz11 (Post 14529584)
Just pull the diff cover and do a fluid change while your at it, kill two birds

sent from a flat black thingie

Kill THREE birds by fixing that LEAK! :cheers2:

(And what's that hose clamped to the top??)

YJRoller 11-30-2012 06:49 AM

Put the rearend up on jackstands,,,,

Spin ONE wheel,,,

If the OTHER wheel spins the same direction,,,

YOU HAVE LIMITED SLIP

:thumbsup:

who_datjeep 11-30-2012 07:17 AM

Thanks. When I get a jack I will spin the wheels and see what happens. When I fix the leak, I should use some high temp RTV sealant, right? The hose on the top should be for the hydraulic brakes.


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