| TJ Diff Fluid Question | |
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JK4AER Poster child
Number of posts : 292 Age : 42 Location : San Antonio, TX Rig : '08 Black JKU Rubi specs. : Loaded with two carseats!!! Registration date : 2009-11-01
| Subject: TJ Diff Fluid Question Tue 21 Dec 2010, 9:03 pm | |
| MY Dad is going to change his diff fluid, anyone know what the preferred fluid and weight is? For the JK, I used Royal Purple 75W90. Also, anyone know how much to add? For the JK I used 3 quarts (2 in front, 1 in back I think). I thought I'd ask here before searching the web...
Thanks in advance, Art | |
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lonestar rubi Got No Life
Number of posts : 1202 Age : 53 Location : san antionio Rig : 2007 JK unlimited Rubicon specs. : It's over there} Registration date : 2010-06-21
| Subject: Re: TJ Diff Fluid Question Tue 21 Dec 2010, 9:20 pm | |
| Royal purple will pretty much cover it unless you are worried about extended warranty then you have to go with a "factory" approved fluid For The factory | |
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r_unda Seasoned Vet
Number of posts : 794 Age : 40 Location : Corpus Christi, TX Rig : 1998 Jeep Wrangler specs. : 2.5L-4 Cyl., 33x10.5 BFG's Mud tires, 2.5 in. lift springs, 1.25 in. BL, 1 in. MML, 4.88 Gears, Front Powertrax No-Slip, Rear E-Locker, Chromoly axle shafts, SYE, Tera Low & 2Low, UCF Tummy Tuck, etc Registration date : 2010-03-12
| Subject: Re: TJ Diff Fluid Question Wed 22 Dec 2010, 9:31 am | |
| 75W-90 works, I use it. Recommended by Jeep: 80W-90 all around or synthetic 75W-140 in the rear for trailer tow.
Dana 30 2.5 pints = 1.25 quarts
Dana 35 3.50 pints = 1.75 quarts Trac-Lok differentials require 4 oz of friction modifier
Dana 44: 4.0 pints = 2 quarts Trac-Lok differentials require 4 oz of friction modifier
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JK4AER Poster child
Number of posts : 292 Age : 42 Location : San Antonio, TX Rig : '08 Black JKU Rubi specs. : Loaded with two carseats!!! Registration date : 2009-11-01
| Subject: Re: TJ Diff Fluid Question Wed 22 Dec 2010, 2:25 pm | |
| - r_unda wrote:
- 75W-90 works, I use it.
Recommended by Jeep: 80W-90 all around or synthetic 75W-140 in the rear for trailer tow.
Dana 30 2.5 pints = 1.25 quarts
Dana 35 3.50 pints = 1.75 quarts Trac-Lok differentials require 4 oz of friction modifier
Dana 44: 4.0 pints = 2 quarts Trac-Lok differentials require 4 oz of friction modifier
Thanks for the info. He has a Rubi (Dana 44) but with aftermarket diff covers (don't remember what brand), so I guess the capacity could be off some. Also, I thought the Royal Purple synthetic includes the modifier needed?? | |
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lonestar rubi Got No Life
Number of posts : 1202 Age : 53 Location : san antionio Rig : 2007 JK unlimited Rubicon specs. : It's over there} Registration date : 2010-06-21
| Subject: Re: TJ Diff Fluid Question Wed 22 Dec 2010, 6:13 pm | |
| Yes it does, that's why I said royal purple would cover it just fill it up until the drips from the fill hole. Then your good. | |
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JK4AER Poster child
Number of posts : 292 Age : 42 Location : San Antonio, TX Rig : '08 Black JKU Rubi specs. : Loaded with two carseats!!! Registration date : 2009-11-01
| Subject: Re: TJ Diff Fluid Question Wed 22 Dec 2010, 10:31 pm | |
| - lonestar rubi wrote:
- Yes it does, that's why I said royal purple would cover it just fill it up until the drips from the fill hole. Then your good.
That's what I thought...just checking. Thanks! | |
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Maverick1701 Jack Twist
Number of posts : 910 Age : 37 Location : Memphis, TX Rig : 1968 Kaiser Jeep M35A2 6x6 specs. : ITS BIG!!!!! Registration date : 2009-02-11
| Subject: Re: TJ Diff Fluid Question Thu 23 Dec 2010, 6:37 pm | |
| 3quarts overall?!?!?!? that must be nice
the deuce takes 2.5 quarts per axle...woohoo! | |
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potlickinpirate Got No Life
Number of posts : 898 Age : 55 Location : La Vernia Tx Rig : 73 cj5 specs. : lined the whole thing Registration date : 2009-09-04
| Subject: Re: TJ Diff Fluid Question Thu 23 Dec 2010, 9:09 pm | |
| Are you sure Mav.? The trucks/cranes at work take 5 gal. per axle | |
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lonestar rubi Got No Life
Number of posts : 1202 Age : 53 Location : san antionio Rig : 2007 JK unlimited Rubicon specs. : It's over there} Registration date : 2010-06-21
| Subject: Re: TJ Diff Fluid Question Thu 23 Dec 2010, 9:43 pm | |
| I think he's thinking 2 1/2gallons. Rocks are big axels
Last edited by lonestar rubi on Thu 23 Dec 2010, 9:45 pm; edited 1 time in total | |
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lonestar rubi Got No Life
Number of posts : 1202 Age : 53 Location : san antionio Rig : 2007 JK unlimited Rubicon specs. : It's over there} Registration date : 2010-06-21
| Subject: Re: TJ Diff Fluid Question Thu 23 Dec 2010, 9:43 pm | |
| I think he's thinking 2 1/2gallons. Rocks are big axels | |
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