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Old 03-06-2009, 07:02 PM   #1
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Gear Oil

I am going to change fliud in front and rear diff. tomorrow I found a thread on here that I cant sem to locate that recommended 85w 140 gear oil so I have it and wanted to double check before I drained it down. 2004 SE with 2.4l
Thanks for your time.

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Old 03-06-2009, 08:02 PM   #2
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The exactly viscositity not super-critical when talking about the gear lube for our axles. If you tow or do extreme level trails, higher viscosities are very good....85W-140, 80W-120, etc are fine for that. Otherwise, especially in colder climates, a lower viscosity is the norm... 80W-90, 75W-90 etc.

With recent discoveries how the ring & pinion gears run cooler with mineral based gear lubes than with synthetic gear lubes, I would go with a conventional mineral based GL-5 or GL-6 gear lube. I've already changed my rear axle to a Torco GL-6 85W-140 mineral-based gear lube and will change my front axle to a mineral-based gear lube pretty soon.

If your rear axle has a Tracloc limited slip differential, most gear lubes already have the friction modifier additive it needs... but Torco gear lube does not so you'd need to add the 4 oz. of friction modifier separately if you have a Tracloc.

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Old 03-06-2009, 11:27 PM   #3
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We don´t have a mineral based 85W-140 gear lube or something similar over here. I must use a mineral 80W-90 GL-5.
How often do have to change it? I do that all 6 months (about 2500 mls and 8-10x wheeling in that period). Is that enough?
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Old 03-07-2009, 02:27 AM   #4
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Quote:
Originally Posted by nicolas-eric View Post
We don´t have a mineral based 85W-140 gear lube or something similar over here. I must use a mineral 80W-90 GL-5.
How often do have to change it? I do that all 6 months (about 2500 mls and 8-10x wheeling in that period). Is that enough?
The only thing I would caution you about Nicholas is the amount of mud/water you go thru during your wheeling excursions. Getting a lot of water in the difs isn't a good thing and you should change it more often, especially since you drive it everyday also.
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Old 03-07-2009, 03:25 AM   #5
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Everytime I was wheeling I test the fluid through the dipstick hole.
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Old 03-07-2009, 03:42 AM   #6
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2000 TJ
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Poison Spider - Fenders, Roll Cage
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Old 03-07-2009, 03:50 AM   #7
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With water in the diff fluid there should be a milky white foam on top of the fluid after driving.
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Old 03-07-2009, 03:53 AM   #8
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Quote:
Originally Posted by nicolas-eric View Post
Everytime I was wheeling I test the fluid through the dipstick hole.
you have a dip stick in your diff ??
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2000 TJ
Dana 44 Front 60 Rear
Stroked 4.9L
TeraFlex - LCG Max Kit, SYE, 2-Low Kit, High Steer Kit w HD Tie Rod, Dual Rate S/T Sway Bar
Warn Winch
FAB Tech Front Bumper
Poison Spider - Fenders, Roll Cage
37x12.50x17 Pro Comp Mud on 17" Pro Comp Steels

Too much more to list....
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Old 03-07-2009, 04:58 AM   #9
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Yes. I have ARB diff covers.

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Old 03-07-2009, 06:19 PM   #10
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Yes. I have ARB diff covers.

oh you suck!!! wanna trade ?
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2000 TJ
Dana 44 Front 60 Rear
Stroked 4.9L
TeraFlex - LCG Max Kit, SYE, 2-Low Kit, High Steer Kit w HD Tie Rod, Dual Rate S/T Sway Bar
Warn Winch
FAB Tech Front Bumper
Poison Spider - Fenders, Roll Cage
37x12.50x17 Pro Comp Mud on 17" Pro Comp Steels

Too much more to list....
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Old 03-07-2009, 06:27 PM   #11
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Oh no. I really like them.
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Old 07-09-2009, 08:51 AM   #12
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that thinkin with your dipstick JIMMY! crack!
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Old 07-09-2009, 09:53 AM   #13
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that thinkin with your dipstick JIMMY! crack!
hahahahahaha CRACK CRACK!

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