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Old 07-25-2009, 10:05 PM   #1
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Question manual transmission fluid change?

i need to change the transmission fluid in my 2003 2.4l wrangler. how hard is it to change? how many qts does it take? and will this fluid work- Royal Purple Manual Transmission Fluid - i have 104,000 miles on it, and the previous owner never changed it once

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Old 07-26-2009, 08:58 AM   #2
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Never had a 4cyl, but on the 6, there is a drain and fill plug. Drain is easy fill can be harder. I forget who makes it but there is a hand pump you can buy to make it easier. Not sure on the fluid.

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Old 07-26-2009, 09:48 AM   #3
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dont forget to remove the FILL plug first, at least loosen it.
Yea sounds wierd but you dont wanna drain all your fluid to find out that the fill plug is seized or stripped. Now your stuck with a empty transmission
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Old 07-26-2009, 12:29 PM   #4
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just did mine

I just did my 98 4.0, piece of cake !? Mine has a huge skid plate covering the tranny and transfer case. Three bolts on each side and four nuts in the center. I used a floor jack to hold it up while I unbolted it, that part sucked, putting it back on sucked just as much.

I downloaded a shop manual online for about 10 bucks which shows everything you could ever need to know. I think mine, and I don't know if the 4.0 uses the same tranny, used about 3.5 qts of 75w-90. I used mobile 1.

The sizes of the nuts and bolts seem to be 1/2 metric and .5 standard. Gotta luv it.
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Old 07-26-2009, 01:09 PM   #5
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that skid plate is also the crossmember for your transmission. If you remove it you should throw a jackstand under the tranny to hold up some of the weight.
My tranny on the 4.0 also used 3.5 quarts.
Supposedly Redline MT90 or Redline Synchromesh, depending on your tranny is the best you can get. Not cheap though.
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Old 02-22-2011, 10:49 PM   #6
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ik this is an old thread but i was about to do my trany fluid along with the tranfer case and front (dana 30) and rear (dana 35) axles and was wondering what i should use, i have the following

05 wrangler X 6spd manual (im not sure on my tranny and transfer??)
and dana 30 and 35 axles
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Old 02-22-2011, 10:54 PM   #7
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axles- 75-90 works well

Tranny- it will work on almost anything. I like mt-90 redline.
T-case-- I use 10w-30 synthetic (all I had lol)
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Just a few more inches Red. You can take it.


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Old 02-22-2011, 11:00 PM   #8
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ok thanx for the help man
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Old 02-22-2011, 11:04 PM   #9
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Quote:
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axles- 75-90 works well

Tranny- it will work on almost anything. I like mt-90 redline.
T-case-- I use 10w-30 synthetic (all I had lol)
MT 90 in the tranny yes, the t-case uses ATF+4. I'm not so sure you want motor oil in it!
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Old 02-22-2011, 11:54 PM   #10
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I only had it in there for a day lol. I have atf 4 in there now
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Isn't the JK just a rebodied PT Cruiser?!

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Originally Posted by coyote_94yj
Just a few more inches Red. You can take it.


If you haven't gotten more out of the insurance company than you deserve, then you haven't screwed them nearly as much as they have been screwing you for the past xx years.
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Old 12-15-2011, 11:21 AM   #11
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I just read an article by Moab Jeepers that most trani fluids contain sulfur now, which corrodes the brass parts inside the ax-5 and ax-15 transmissions. They said that MT-90 by Redline was definitely the way to go.
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Old 08-16-2012, 04:55 PM   #12
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now I was told by Willys works here in Tucson the gear greese (90wt.) or any thing like it would screw up the cavlar on the syncros. They went on to say thoese transmitions were built for very light oil. Said I should be running Syncromesh by delco..?? I have been running it for a year or so and it doese shift better.. just sayin!
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Old 08-16-2012, 05:19 PM   #13
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Originally Posted by jdhallissey View Post
T-case-- I use 10w-30 synthetic (all I had lol)
That probably won't cause short term damage but chain driven transfer cases like all Wranglers have require ATF as a lubricant. Gear lube and 10W-30 are both more suitable for gear driven t-cases like the old Dana 300 or Atlas II.
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Old 03-22-2013, 03:19 PM   #14
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Hey Jerry am I correct in saying I will need roughly 2.5qts of manual tranny fluid for my 03 wrangler 2.4 nv 1500 transmission?
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Old 03-22-2013, 03:32 PM   #15
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You're right on at that 2.5 quarts, I think its precise amount is something like 2.41 quarts or so.
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Old 03-22-2013, 03:36 PM   #16
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Cool thanks
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Old 03-22-2013, 04:29 PM   #17
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Engine Oil (w/ filter)
2.4L 4 quarts 10W-30
2.5L 4 quarts 10W-30
4.0L 6 quarts 10W-30 Cooling System
2.4L 9 quarts
2.5L 9 quarts
4.0L 10.5 quarts Manual Transmission
AX-5 3.3 quarts
AX-15 3.25 quarts
NV-1500 4.8 pints
NV-3500 4.2 pints
NSG-370 3.17 pints
Automatic Transmission
32RH 17.1 pints
30RH 7 quarts
42RLE 4 quarts

Transfer Case
NV-231 2.2 pints ATF+ or Dexron II
(Rubicon) NV-241 4.2 pints ATF+4 D-30 axle
Gear lube 2.5 pints GL-5
80W-90 or 75W-140 synthetic
D-35 axle
Gear lube 3.5 pints GL-5
80W-90 or 75W-140 synthetic D-44 axle front & rear
Gear lube 4.0 pints GL-5
80W-90 or 75W-140 synthetic,
Rubicon - 75W-140 synthetic
w/trac-lok add 4.0oz of Limitied Slip Additive.

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