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So whats the deal with Differential fluid?

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Old 04-08-2014, 04:52 PM
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There are crappy mechanics out there just as there are turds in every profession. However they get found out and generally never do as well as the guys and gals that treat every car as there own and who have the passion for fixing things.
Old 04-08-2014, 06:51 PM
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Originally Posted by JWheeler
Ye Ol' Cherokee, did you get you service done or get discouraged by all the bickering?
I was so scared by this thread that i freaked out and sold me jeep for $25 !

lol, I actually stopped following the thread after it took a turn for the worst, but I did in fact do the service. The front was easy as pie, no leaks. The rear, well, I couldnt get the cover off... So ill take another shot at that on Sunday

Thanks for asking!
Old 04-08-2014, 07:43 PM
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Originally Posted by Ye Ol' Cherokee
I was so scared by this thread that i freaked out and sold me jeep for $25 !

lol, I actually stopped following the thread after it took a turn for the worst,

Sensible man!

Originally Posted by Ye Ol' Cherokee
but I did in fact do the service. The front was easy as pie, no leaks. The rear, well, I couldnt get the cover off... So ill take another shot at that on Sunday
Bolts? Or was the cover stuck?


If it's the stuck cover, a
flat pry bar flat pry bar
will do ya good! A rubber mallet is a good thing, too.


Of course, craftsmen use a gentle application of C-4 or det cord.
Old 04-08-2014, 07:51 PM
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Originally Posted by BlueRidgeMark

Of course, craftsmen use a gentle application of C-4 or det cord.
I hope you removed the gas tank first...
Old 04-08-2014, 08:27 PM
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Old 04-08-2014, 09:13 PM
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Originally Posted by Ye Ol' Cherokee
I was so scared by this thread that i freaked out and sold me jeep for $25 !



lol, I actually stopped following the thread after it took a turn for the worst, but I did in fact do the service. The front was easy as pie, no leaks. The rear, well, I couldnt get the cover off... So ill take another shot at that on Sunday



Thanks for asking!

A good smack with a dead blow is usually what it takes. Glad you got the front done. Not as bad as you thought, right?
Old 04-08-2014, 10:23 PM
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Originally Posted by BlueRidgeMark



Bolts? Or was the cover stuck?


If it's the stuck cover, a flat pry bar will do ya good! A rubber mallet is a good thing, too.
The cover was stuck. I plan to mess with it, as i have a flat pry bar and mallet laying around somewhere. Ill get around it it sooner or later lol
Old 04-08-2014, 10:25 PM
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Originally Posted by JWheeler
Not as bad as you thought, right?
Not at all! if anything, I would say its more engaging that changing oil, but its just as easy. I kind of liked doing it actually lol. I'm glad the RTV worked, although i wasn't sure whether to let it set, then torque it, or torque it immediately... or if the torque even really mattered...

Am i supposed to notice a difference in the driving with fresh fluid in there, or is it just the peace of mind, knowing your gears are healthy?
Old 04-08-2014, 10:26 PM
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Originally Posted by BlueRidgeMark
Well, back to helping the OP (if anyone is still interested)....

That video is good, but do the gasket cleanup BEFORE you spray things out with brake cleaner. That way the old grease catches any dust you make, and it gets cleaned out one time with the brake cleaner.


And, yes, RTV will work just fine. It's easy to use. 'Nuff said.
Thanks for this tip, by the way !
Old 04-08-2014, 10:28 PM
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Originally Posted by salad
You can use RTV, high tack, Indian Head, Gasgcinch, dried goat's blood, or whatever you like on a paper gasket.

A lot of manufacturers have switched to RTV for a number of reasons. Paper gaskets have a higher TCO and aren't as versatile. For a DIYer that will probably score the sealing surface, have a deformed diff cover (stamped steel bends easily), or possibly need to do more than one gasket, RTV is cheap and easy for a DIYer.

This thread is to give a guy a hand on servicing his diff for the first time (who, by the way, doesn't know how to properly prep and install a paper gasket), not a pissing contest.
Dried goats blood worked the best on my valve cover gasket... lol

Thanks for the info, salad
Old 04-08-2014, 10:33 PM
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Originally Posted by Ye Ol' Cherokee
I'm glad the RTV worked, although i wasn't sure whether to let it set, then torque it, or torque it immediately... or if the torque even really mattered...
Depends lol. Some want you to let it set, some skin, some assemble but wait, and some just everything inmediately. Read the tube lol

Originally Posted by Ye Ol' Cherokee
Am i supposed to notice a difference in the driving with fresh fluid in there, or is it just the peace of mind, knowing your gears are healthy?
If anything it's more likely the stuff you put in is thicker as conventional gear oil tends to shear to a lighter viscosity.

As you work on your Jeep more you'll find there are a lot of "good feelings". You'll swear that degreasing the engine bay and putting in a new battery increases horsepower lol
Old 04-08-2014, 11:27 PM
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Originally Posted by salad
Depends lol. Some want you to let it set, some skin, some assemble but wait, and some just everything inmediately. Read the tube lol



If anything it's more likely the stuff you put in is thicker as conventional gear oil tends to shear to a lighter viscosity.

As you work on your Jeep more you'll find there are a lot of "good feelings". You'll swear that degreasing the engine bay and putting in a new battery increases horsepower lol
I dont know about you, but after washing me engine, it just seems to idle better? lol

Then again, it allows to me to show off my factory paint on my head :-)
Old 04-10-2014, 10:03 PM
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Originally Posted by Hayden98XJ
I hope you removed the gas tank first...

Where's the fun in that?


Old 04-11-2014, 07:29 AM
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Originally Posted by salad
14. Fill to the bottom of the fill hole with 75w90 API GL-5 gear oil. If you have a limited slip differential you'll need to add a friction modifier (already present in most synthetics)
I Prefer 85W-140

Makes the lockers quieter.
Old 04-11-2014, 02:16 PM
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Originally Posted by Desertfox1023

I Prefer 85W-140

Makes the lockers quieter.
Which I'm sure is a great choice for a daily driven street vehicle with open diffs lol


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