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  #25  
Old 07-23-2009, 08:55 AM
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Re: WK Front and Rear Differential Fluid Change

Redline synthetic 75w140 has additive already mixed. Btw too much additive is not a good thing. I would try redline, then add a little extra additive if you feel the dif acting up in a sharp turn.

If you haven't already get a 14mm hex for the front dif and transfer case. I just picked up a set of hex sockets from Harbor Freight $14.
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  #26  
Old 03-07-2010, 10:16 PM
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Re: WK Front and Rear Differential Fluid Change

Hey guys, sorry to dig up an old thread but it still applies.... I'm about to change my differential fluid and I have decided to order the amsoil fluid. I just wanted to check to be sure I get everything I need. I was gonna order 4 quarts of the 75w140 gear oil...or should I get 5 just to be safe? Also what else do I need? I think the transfer case is supposed to be done at the same time? And the dealership fluid is recommended for that...???? Is there anything else that should be done at the same time? Any recommendations or tips/advice would be greatly appreciated!!

Thanks for the help guys...its really overdue and needs done...

reminder... its a 2006 overland... quadra drive II setup...

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  #27  
Old 03-07-2010, 10:44 PM
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Re: WK Front and Rear Differential Fluid Change

dont sweat it i just did mine and im at 46K
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Old 03-08-2010, 12:20 AM
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Re: WK Front and Rear Differential Fluid Change

Here is some video's I found on Youtube that show how to change the fluid in the Transfer case and Differentials, i've never done it so im not sure if its correct but here goes. The differential video is the easy but not correct to do it I think but thats how I plan to do it. =) It all seems easy enough? I might do mine at 40k in a few hundred miles.


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  #29  
Old 03-08-2010, 02:36 PM
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Re: WK Front and Rear Differential Fluid Change

Hey guys,

Im confused... If you get Full Synthetic oil, do you still need to add the additive? or are you just adding it as "extra insurance" ? Thanks.
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  #30  
Old 03-08-2010, 07:48 PM
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Re: WK Front and Rear Differential Fluid Change

You need to add it if it is required ( electronic diffs ). If you do need it... you must either get some that has it already in the oil (redline or royal purple has been tossed around the boards with it having it already in it) or get oil without it and get an additive from the dealer to add in with your oil.

My question is... if say i DONT need it... would it effect my diffs if i got some royal purple that has it?
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  #31  
Old 03-08-2010, 09:58 PM
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Re: WK Front and Rear Differential Fluid Change

2 things here.

1 Id like to see a nice write up on changing the diff fluid for the front end. Ive dont the rear before but i have not had a chance to try the front so id like to see what i am getting in for.

2, I work at autozone and we sell a mobil 1 and royal purple that says it has the additive already in it. Will that be bad to use in a QTII diff? The QTII diffs are just open differentials and do not require an additive but i want mobil 1 or royal purple fluid.

Also i know its 75w140 but exactly how much goes in each diff once drained?

Does anyone know is LubeLocker makes a re usable diff cover gasket for the wk rear end? I had them for my D30 and D44 and it was so much easier then rtv every time i changed fluids.

http://www.lubelocker.com/products.html

This would say no but i have had them for a chry 8.25 and the wk rear is ssupposed to be a chry 8.25 of sorts as well as the d44 in the SRT.
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  #32  
Old 03-08-2010, 10:17 PM
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Re: WK Front and Rear Differential Fluid Change

You can run a fluid with the additive in in WITHOUT a problem. The Amsoil Severe Gear is one of those fluids.

Also the "Super Secret Dealer Only Fluid" that goes in the 245/247/249 Quadra Drive is a MobilFluid 424 fluid, Amsoil offers the ATH fluid that works well in that application.

You can use the online lookup guide to check for fluids & capacities for any vehicle.
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  #33  
Old 03-09-2010, 08:20 AM
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Re: WK Front and Rear Differential Fluid Change

Thanks that is really helpful.
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  #34  
Old 03-10-2010, 10:16 AM
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Re: WK Front and Rear Differential Fluid Change

Quote:
Also i know its 75w140 but exactly how much goes in each diff once drained?
As for the amount of fluid in each axle, I had a little over 1.5 bottles in the front and a little over 2 in the rear. I bought a pump for about $10 and this is the only way to go. I added the friction modifier first and then added the gear lube.

I would say I ended up with about 8 oz left over total. So my assumption 52 oz in front and 76 oz in rear. When I drained my front, I think it only had 32oz in it or less, so I was quite worried it had been being abused by the previous owner and neglected. Anyone else have a low amount up front.

Transfercase fluid and friction modifier I bought from Mopar. Lube I bought was MAG1 from my local Napa. It met all the requirements and was about half the price. My Dad uses MAG1 in all of his tractors and so far no problems.

14MM or 9/16 Allen wrench is needed for the front end. My Transfer case was a 3/8. Rear was 1/2 inch bolts.
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  #35  
Old 03-10-2010, 03:50 PM
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Re: WK Front and Rear Differential Fluid Change

Has anyone used the cheater methods I posted above in those Youtube video's? Is it a good or bad idea to do it that way? I looks super simple.
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  #36  
Old 03-10-2010, 11:30 PM
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Re: WK Front and Rear Differential Fluid Change

I wouldnt think that would be a bad way of doing it... if your oil isn't contaminated. If it is... might want to do it the proper way.
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