Differential fluid change. | Ford Explorer - Ford Ranger Forums - Serious Explorations

  • Register Today It's free! This box and some ads will disappear once registered!

Differential fluid change.

akcrxnj

Member
Joined
March 12, 2004
Messages
22
Reaction score
0
City, State
Ogdensburg, New Jersey
Year, Model & Trim Level
99 Sport
All - I was searching the site looking for a how-too in regards to changing out the fluid in the front and rear diffs. Does anyone know if this information is posted up on forum? Is the fluid change hard to do? I have a 99 explorer sport 4wd. Thanks.
 
<

Join the Elite Explorers $20 Gets rid of the ads!

Elite Explorer members see no advertisements, no banner ads, no double underlined links, can add their own profile photo, upload photo attachments in all forums, and Media Gallery, create and save more private conversations, and more. Join Today. Your support is greatly appreciated.




cybergasm

Explorer Addict
Joined
January 8, 2006
Messages
6,436
Reaction score
7
City, State
Humboldt Ks
Year, Model & Trim Level
1997 Mountaineer 5.0
i believe the front is gonna the bigger PITA since it's stuffed in the front end but basically for either end you remove the bolts from the covers except for a couple at the top just loosen them get your drain bucket underneath and crack open the covers and let it drain out. then remove the covers reseal em bolt then back on and refill the diffs.

about all there is to it not entirely difficult just time consuming.

Dunno about any stickies on here but I sure someone will be along to post one for ya.:shifty_ey
 
<



Cobraguy

Explorer Addict
Joined
February 22, 2008
Messages
2,520
Reaction score
17
City, State
Phoenix...Greatest City on Earth
Year, Model & Trim Level
1995 EB & 1999 EB 5.0
For the rear, remove the cover, drain, clean, reseal, and fill.

For the front, purchase a suction gun, remove the fill plug, fish the hose to the bottom of the housing, and suction the gear lube out. Be sure to have the lube warm first. Alternatively, there are many shops that have a machine that is designed to do all that very easily. Call and ask if they have the capability to service a diff by sucking the old oil out.
 
<



Four0Sport

Jack Pewe
Elite Explorer
Joined
August 26, 2004
Messages
3,028
Reaction score
101
City, State
West Virginia
Year, Model & Trim Level
1993 2dr
x2 on the suction gun. i also used it to fill the rear with fluid, the fill plug on the 8.8 is in a weird spot that makes working on it while laying on your back on gravel kind of a pain.
 
<



akcrxnj

Member
Joined
March 12, 2004
Messages
22
Reaction score
0
City, State
Ogdensburg, New Jersey
Year, Model & Trim Level
99 Sport
Thanks all - I have a suction gun and will probably be going that route. One last question I had was what type of gear oil should be used in the diffs?
 
<



IZwack

Moderator Emeritus
Joined
February 5, 2003
Messages
21,712
Reaction score
33
City, State
Germantown, MD
Year, Model & Trim Level
1998 Ford Explorer
<



<



akcrxnj

Member
Joined
March 12, 2004
Messages
22
Reaction score
0
City, State
Ogdensburg, New Jersey
Year, Model & Trim Level
99 Sport
I was looking at the manual and it states that the front should get 80w90 and the rear either 80w90 or 85w140 + friction modifiers. I noticed some threads where it looks like some forum members just went ahead and used 85w140 in both front and rear. I was thinking of doing this as it would be convenient to use the same oil in both diffs. Is there an issue with running the 85w140 in both front and rear? Lastly I noticed that Royal Purple makes a gear oil which states you do not need any additional friction modifiers.

Royal Purple Gear Oil - http://www.royalpurple.com/gear-oil.html
 
<



Cobraguy

Explorer Addict
Joined
February 22, 2008
Messages
2,520
Reaction score
17
City, State
Phoenix...Greatest City on Earth
Year, Model & Trim Level
1995 EB & 1999 EB 5.0
I have seen posi chattering from Royal Purple in our Cobras. I would use the modifier with it if it were me. You can also add it later if you need it and try it like it is. As to what oil, you are on your own if you deviate from factory recommended fluids. However, let's get real. We all know there are outstanding products we can use. Synthetics for example. I'm not going to tell you to use 85W-140 in the front diff. What I am going to say is there are Explorers running around just fine with it in there. Hope that helps you decide.
 
<



Top