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Rear Differential Leak

Phildeez

Member
Joined
October 6, 2019
Messages
15
Reaction score
1
City, State
elkland, Pennsylvania
Year, Model & Trim Level
2004 Explorer XLT
Good Afternoon. My rear Differential leaks and will not hold proper fluid amount. I am not sure where to start. Droplet appear to be forming on the bottom of the pumpkin. So I'm not sure where to start to troubleshoot and replace. Where could it be leaking and how many seals are utilized? 2004 Ford Explorer 4.0 Regular Fuel. Any help is appreciated. Thanks.
 


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Donystoy

Well-Known Member
Joined
January 7, 2010
Messages
346
Reaction score
23
City, State
Hamilton, Ontario
Year, Model & Trim Level
02 Eddie Bauer 4.6
Common leaks are the seals where the axles go into the pumpkin. Maybe clean it up and try to pinpoint the area of the leak. Have had both replaced a few years ago on mine and have a very small leak again. One of the few areas on the vehicle that I leave to my mechanic.
 




imp

Explorer Addict
Joined
November 12, 2009
Messages
4,730
Reaction score
685
Location
West-Central AZ along the Colorado River
Year, Model & Trim Level
59 Ranchero F250 D'Line
Good Afternoon. My rear Differential leaks and will not hold proper fluid amount. I am not sure where to start. Droplet appear to be forming on the bottom of the pumpkin. So I'm not sure where to start to troubleshoot and replace. Where could it be leaking and how many seals are utilized? 2004 Ford Explorer 4.0 Regular Fuel. Any help is appreciated. Thanks.
@Phildeez

Pinion seal
Axle seal(s)
Cover gasket
Cracked housing
 




Littleant

Well-Known Member
Joined
September 10, 2016
Messages
250
Reaction score
44
Location
Vermont
City, State
Orleans
Year, Model & Trim Level
2010 Mountaineer 4.0
Agree with imp. I would go with Pinion seal or cover.
 












TechGuru

Explorer Addict
Joined
August 23, 2015
Messages
2,119
Reaction score
285
Location
Texas
Year, Model & Trim Level
2003 XLS 4X4 4.0L FLEX








imp

Explorer Addict
Joined
November 12, 2009
Messages
4,730
Reaction score
685
Location
West-Central AZ along the Colorado River
Year, Model & Trim Level
59 Ranchero F250 D'Line
The only kits I've seen come with new bearings too.

Just go here and start adding the seals to your cart, try to get them all from the same shipping location to save on shipping.

2004 FORD EXPLORER 4.0L V6 Drivetrain Parts | RockAuto
@TechGuru

I frown upon kits for one simple reason: Those offering them buy and supply the cheapest shit they can get, re-package it all in their kits, then pass the possibility posed by such use along to the installer.

I try to buy the best-reputationed parts, as far as such effort might go, like Timken, Motorcraft, National or Chicago Rawhide Seals, Dana parts where ever possible: Spicer Driveline U-joints, driveshafts, Spicer gears, Perfect Circle Piston Rings. In fact, my most acceptable results were with P-C "2-In 1" rings which had a molybdenum hard insert in the top ring, which seated-in within minutes and produced very long life.
imp

th
 




donalds

Elite Explorer
Joined
July 12, 2015
Messages
4,460
Reaction score
2,016
Location
Stem
City, State
Nc
Year, Model & Trim Level
1999 ford explorer sohc
Doing a job like this is a pain so please buy great parts
 




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