Differential oil question

[Asmegin]

Where'd you guys go? I've been waiting to hear how you got that much lube in there.

I'm guessing they jacked up the rear only? I don't know if that would give you another qt tho...

 

[muzzymaniac]

Well, you see, its like this.... Ever click on a thread while just reading the heading and not where it is?
Thats what happened to me, the second generation rear axle assembly does indeed take close to three quarts, and the front diff takes close to two.

I'm not afraid to admit when I made a mistake. It isn't like it would cause damage in some way, you just would not be able to pour it all in. Might cause to to have to return a quart, thats the extent of it.

You realize you're in the 3rd Gen forum right? You should specify if you're referring to a different vehicle. Not everyone has the luxury of returning product - many buy online and twith the prices of oils like Amsoil and RP no one wants extra hanging around.

 

[my pos mounty]

Get over yourself, its a $20 bill and you SHOULD have some of it hanging around.

 

[muzzymaniac]

Love when people can't help but get in the way

 

[BTMorrison1978]

2009 Ford Explorer 4x4 Eddie Bauer

My friends, between this thread and another about differential oil that said to use ATF in the front diff. I'm getting confused. Does anyone know definitively what weight of gear oil I should use in my front and rear diff? 2009 Explorer 4x4, in Colorado. Thanks.

 

[BTMorrison1978]

Front Diff Oil Change 2009 Ford Explorer 4x4 Eddie Bauer

I just changed my oil in my front diff on a 2009 Explorer EB 4x4. I used Royal Purple 75W-90. I did not crack the cover off to drain, because I didn't have the time. I used a oil suction gun I got at the auto parts store. On the 09 Explorer it only has a fill hole, there is no drain hole. I was able to suck out 1.25qts and I filled exactly the same amount of 75W-90.

My vehicle has 80,000 miles no major repairs. I will be putting the Royal Purple 75W-140 in the rear diff as soon as I get some time. I plan to do the same process. I'll post when I'm complete. The front diff change took about 1 hour to complete from beginning to end. Would've been a little quicker if I had all the tools and misc. stuff to start (paper towels, drip pan)

 

[MicroGuy]

I just bought a 2002 Ford Explorer XLT with 2-wheel drive. It has 177,000 miles but is in excellent condition. I'm hearing a whine coming from the rear end starting around 20 MPH increasing in pitch as I increase speed. If I let off the gas, the whine is unaffected. It's not loud and can't be heard with the the radio playing.

My Ford dealer quoted me a price of $180.00 (seriously) to change the fluid, so I decided to do the job myself. I'm not a mechanic. I've been reading all day and watching Youtube videos.

This was a good one: https://www.youtube.com/watch?v=T-Sn8B5RnBk

What's the best way to determine if I have the limited slip diff? Do I need to put in the additive I keep reading about on the forums? Will this fix the issue?

Any and all help will be greatly appreciated! :exp:

 

[swshawaii]

See code on bottom of door sticker or metal tag on axle.

http://www.explorerforum.com/forums/showthread.php?p=2549104

 

[turborich]

WRONG!
Use ONLY 75/140 full synthetic.
Add friction modifier if you have the limited slip

By The Way: theres a tag on your diff that will tell you what weight/type of oil to use

This!!!

 

[scapino]

I've got an '05 Sport Trac, 4wd with 175k miles. Had a leak on the rear diff so I pulled off the cover to replace the gasket. Note that mine did not have a drain plug; only a fill plug. Also note that I got about 2.5 qts of fluid out which sucks coz I had only bought 2 qts. Now I've got to run up to Auto Zone for an extra btl.

I just used straight up 75w-140; it was a tad more expensive (ok double price) vs 80-90 but it seemed the safer bet.

I was pleasantly surprised that the old fluid didn't look or smell too bad - seen way worse on some of the how to / YouTube videos.

 

[MrPulldown]

My service manual says to use 75-90 in the rear. Now I am reading all this 75-140 talk. Can someone link the TSB that states we should be using the heavier oil. I am familiar with both weight gear oil. The 145 is MUCH heavier stuff. Seems like a diff designed for 90 will not run well with 145.

 

[scapino]

I didn't check my service manual - I just went with the 75-140. I'm not sure of how the heavier weight could cause damage though?

I will say this - I've only gone through one tank of gas thus far, but it seems that I've lost some MPGs. On my second tank of gas I'm monitoring the actual mileage and will know more soon - I'll update later...

 

[swshawaii]

My service manual says to use 75-90 in the rear. Now I am reading all this 75-140 talk. Can someone link the TSB that states we should be using the heavier oil. I am familiar with both weight gear oil. The 145 is MUCH heavier stuff. Seems like a diff designed for 90 will not run well with 145.

REAR AXLE NOISE REPAIR

http://www.bbbind.com/free_tsb.html

 

[TechGuru]

I'm using

This is a little cheaper:

 

[MrPulldown]

I have the Valvoline on my oil shelf right now. Have a Dana 44 in my truck that uses it.