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Unread 02-12-2013, 07:02 PM   #1
Mrjones
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1992 YJ Wrangler 
 
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diff and Trans.

92 YJ
2.5L
Manual

Alright guys... Just tossed a set of 33x12.50s on the old 92YJ GOT A 4inch lift. All gears and axles are stock (Dana 30 & 35) I am headed to Colorado by way of GA at the beginning of next month. Soooo I want to service my front and rear Diff by pulling the covers spaying them out and replacing the gasket with some nice new feltpro gaskets then fill em back up with some good ole gear fluid. Any suggestions on how to go about this? I have the general mechanical knowledge to do this but was wondering if y'all had any tips or tricks for me..

Also I was looking to service the transmission aswell. Just had rebuilt about 3000 miles ago and wanted to drain and replace the fluid. Any tips/tricks on this?

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Unread 02-12-2013, 10:34 PM   #2
Anticanman
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I would go with a lubelocker up front.

Sounds like you've got everything else under control. Mean Max did a write up on each of these things. Check the FAQ.
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Unread 02-12-2013, 10:51 PM   #3
blurunner
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Just make sure to put a pan under the diff to catch the oil. After you have loosened the diff bolts just carefully pry the bottom of the cover so oil don't just come pouring out everywhere. Otherwise it's an easy task to do.
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Unread 02-13-2013, 05:19 AM   #4
bogleparsons
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I would say yes the LubeLocker is the best choice, but second is RTV, Felpro gasket is a distant third choice for me.

Take cover off, clean with brake cleaner, wipe out, replace cover/gasket fill.

Enjoy your drive to CO with no 5th gear lol
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Unread 02-13-2013, 06:40 AM   #5
Juggalo
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didnt see which tranny you have, the 5 speed could be an ax5 like mine. if so the drain plug is pretty easy to find on the bottom and the fill plug is about halfway up on the passenger side-a little hard to get to through the skid plate. it should be a 15/16 socket. its WAY easier to fill from the top by taking out the gear shift. remove the boot around the shifters and there is a lock ring around the shifter shaft where it goes into the tower. press down on it and i think you spin it counter clockwise to unlock it, then the shifter just comes out of the tranny, (use some needle nose to help spin the lock ring). fill with 10w30 until it starts running out of the fill hole (a little over 3 quarts) and replace fill plug. i just worked on mine last night and its still apart if you need some pictures, im pretty sure there are some already in the FAQ as well.
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Unread 02-13-2013, 07:57 AM   #6
Mrjones
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What it's the FAQ?
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Unread 02-13-2013, 08:09 AM   #7
Juggalo
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Frequently Asked Questions. When you click on the YJ technical forum, there should be a thread near the top titled "YJ Frequently Asked Questions (FAQ), Write Ups & stock specs. Look here first". Lot of good technical info in there.
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Unread 02-13-2013, 09:26 AM   #8
Mrjones
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No one has 75w90 im safe to run 80w90 w/out additive right?
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Unread 02-13-2013, 09:32 AM   #9
Anticanman
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It will blow up after 5,000 miles!!!!

Just kidding. Its fine.
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Unread 02-13-2013, 06:09 PM   #10
Mrjones
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Well did it today we will see if she grenades on my way to Colorado.................!
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Unread 02-13-2013, 07:01 PM   #11
Anticanman
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Did you stick gear oil in the transmission or go with 10w30 like you should?
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Unread 02-13-2013, 07:12 PM   #12
Mrjones
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That's next week.I was thinking I would fill it with hopes and dreams.
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Unread 02-13-2013, 09:48 PM   #13
Anticanman
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Its an ax-5. Hopes and dreams aren't compatible.
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Unread 02-13-2013, 10:13 PM   #14
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Originally Posted by Anticanman View Post
I would go with a lubelocker up front.

Sounds like you've got everything else under control. Mean Max did a write up on each of these things. Check the FAQ.
http://www.jeepforum.com/forum/f12/b...enance-728231/

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Unread 02-14-2013, 07:02 AM   #15
bogleparsons
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Quote:
Originally Posted by Mrjones View Post
That's next week.I was thinking I would fill it with hopes and dreams.
try puppy tears the viscosity is perfect.
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