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Diff fluid leaking onto passenger wheel?

  • Thread starter Thread starter OneStiffGT
  • Start date Start date May 24, 2007
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OneStiffGT

New Member
Jan 18, 2006
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Canada
May 24, 2007
#1
  • May 24, 2007
  • #1
The other day I was washing the car and I spotted a leak on my wheels, first I thought it was break fluid then I realised it is diff fluid.

What does this mean? It is leaking jsut iinside the wheel? I've got 31 spline moser axles if it makes any difference.
Axle Seals?
 
C

chuck943

New Member
Oct 26, 2002
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north carolina
May 24, 2007
#2
  • May 24, 2007
  • #2
Yes that is a leaking axle seal
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
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May 24, 2007
#3
  • May 24, 2007
  • #3
Could also be grease from a shot wheel bearing.
 
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OneStiffGT

New Member
Jan 18, 2006
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May 24, 2007
#4
  • May 24, 2007
  • #4
Smells definitely like diff fluid.

In this case, do I need a complete new axle or just a seal?
 
C

chuck943

New Member
Oct 26, 2002
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north carolina
May 24, 2007
#5
  • May 24, 2007
  • #5
unless you are running independent rear suspension your axle bearings are lubed by the rear diff. fluid, not grease. Unless the bearing is moving on the axle(it is pressed fit) or you have a groove worn in the axle from the seal then axle should be ok and seal replacement should fix it.
 

SaleenGT2001

Well-Known Member
Jul 18, 2005
2,811
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58
Four Oaks NC
May 24, 2007
#6
  • May 24, 2007
  • #6
seal is bad. its an easy fix
 

Twisted

Founding Member
May 14, 2002
387
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Hansen,CT
Sep 6, 2007
#7
  • Sep 6, 2007
  • #7
If you change the axle seals do you need to add additional fluid above the normal 2 quarts?
 

BennyBlown2v

New Member
Dec 9, 2004
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Carmel, INdiana
Sep 6, 2007
#8
  • Sep 6, 2007
  • #8
You need a new axle seal - it's not a difficult install.

1) remove diff cover draining fluid

2) remove pinion cross shaft (small bolt and slide shaft out)

3) remove U-clip ("c" clip) from axle by pushing axle in and sliding clip out

4) remove axle from rear end (pull)

5) use slide hammer w/ attachment to pull out axle seal

6) use seal driver to install new seal

7) go backwards and re-install everything, don't forget to put new fluid and friction modifier in!
 

Twisted

Founding Member
May 14, 2002
387
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Hansen,CT
Sep 6, 2007
#9
  • Sep 6, 2007
  • #9
BennyBlown2v said:
7) go backwards and re-install everything, don't forget to put new fluid and friction modifier in!
Click to expand...

How much fluid? 2 quarts or more. I have dealer charging me 4 quarts for an axle seal replacement job. They claim they needed to refill the axle tubes.
 

RandyStinchcomb

New Member
May 25, 2005
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Randallstown, Md
Sep 6, 2007
#10
  • Sep 6, 2007
  • #10
Twisted said:
How much fluid? 2 quarts or more. I have dealer charging me 4 quarts for an axle seal replacement job. They claim they needed to refill the axle tubes.
Click to expand...


thats total BS, rear dif only holds something like 2.4 qts and that includes a 4 fl/oz bottle of friction modifier, you dont fill the axle tubes your dealer got you on that 1
 

Twisted

Founding Member
May 14, 2002
387
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Hansen,CT
Sep 6, 2007
#11
  • Sep 6, 2007
  • #11
I'm fighting them on it and I need some proof. I have the Ford Workshop Manual and it says nothing about extra fluid. Just the fill to 1/4-9/16" below the fill hole. That is where the service manager is claiming 4 quarts.
 

R.J.

Member
Aug 20, 2003
813
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16
Warwick, Rhode Island
Sep 6, 2007
#12
  • Sep 6, 2007
  • #12
The Haynes manual says 3.75 pints, which is almost 2qts. Not even two full qts!!
If they used 4 qts, thats why it is leaking out!!
 
B

BobHyatt

New Member
Aug 7, 2007
378
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Sep 6, 2007
#13
  • Sep 6, 2007
  • #13
BennyBlown2v said:
You need a new axle seal - it's not a difficult install.

1) remove diff cover draining fluid

2) remove pinion cross shaft (small bolt and slide shaft out)

3) remove U-clip ("c" clip) from axle by pushing axle in and sliding clip out

4) remove axle from rear end (pull)

5) use slide hammer w/ attachment to pull out axle seal

6) use seal driver to install new seal

7) go backwards and re-install everything, don't forget to put new fluid and friction modifier in!
Click to expand...

one other step to add. If you have ABS, remove the abs sensor on that side, otherwise you can't push the axle in far enough to remove the c-clip.
 

Rusty67

20+ Year Stangneter
Dec 3, 2002
3,749
37
109
LA, CA
Sep 6, 2007
#14
  • Sep 6, 2007
  • #14
R.J. said:
The Haynes manual says 3.75 pints, which is almost 2qts. Not even two full qts!!
If they used 4 qts, thats why it is leaking out!!
Click to expand...

I have my rear end bench rebuilt recently and it was throwing fluid out of the breather because they over filled it. If you can get your car level on jack stands, pull the drain plug and see what comes out. If fluid comes out it may just be over filled. If not then it provably is the axle seal.

Did they already do the service on the car ?
 

BennyBlown2v

New Member
Dec 9, 2004
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Carmel, INdiana
Sep 6, 2007
#15
  • Sep 6, 2007
  • #15
BobHyatt said:
one other step to add. If you have ABS, remove the abs sensor on that side, otherwise you can't push the axle in far enough to remove the c-clip.
Click to expand...

Good point! Also, when removing the sensor always remember to ROTATE it to get it out of the hole, and when putting it back in do NOT over tighten it or the plastic will crack, very easily.

That's TOTAL BS that it takes 4qts! You should only have like 1.78qt in there or something. The axle tubes don't need "filled", its one continuous cavity (the center section and axle tubes).
 
B

BobHyatt

New Member
Aug 7, 2007
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Sep 6, 2007
#16
  • Sep 6, 2007
  • #16
BennyBlown2v said:
Good point! Also, when removing the sensor always remember to ROTATE it to get it out of the hole, and when putting it back in do NOT over tighten it or the plastic will crack, very easily.

That's TOTAL BS that it takes 4qts! You should only have like 1.78qt in there or something. The axle tubes don't need "filled", its one continuous cavity (the center section and axle tubes).
Click to expand...

Some idiot saw 3.76 pints or whatever it says, and didn't realize that was not the same thing as "quarts". I'd suspect simple error rather than a ripoff, as it is too easy to verify the correct amount and they then come up looking like thieves...
 

Twisted

Founding Member
May 14, 2002
387
0
16
Hansen,CT
Sep 7, 2007
#17
  • Sep 7, 2007
  • #17
Here is what the service manager is claiming.

"we did axle seals in your vehicle. This means we have to fill the center section and the axle tubes. The axle bearings are lubricated by the gear oil. The entire axle housing was empty due to the fact the axle seals had to be replaced. The amount of fluid charged is the amount used."

4 quarts my ass. I am now trying to get a hold of someone higher than him at the dealership.
 

RandyStinchcomb

New Member
May 25, 2005
1,159
3
0
Randallstown, Md
Sep 7, 2007
#18
  • Sep 7, 2007
  • #18
the axle tube(s) Do Not Need to be filled.
the 2 qts of fluid in the center section will flow out into the tubes and lube the bearings.
this service manager is full of it.
 
K

Kilgore Trout

Fried or Broiled ?
10 Year Member
Mar 30, 2005
4,749
95
134
Sep 7, 2007
#19
  • Sep 7, 2007
  • #19
They probably just confused pints with quarts which would mean they put twice as much in as required since there are two pints in one quart...
 

SVT32VDOHC

waiting for the next hack atta
Founding Member
Nov 22, 2001
3,501
28
119
Motor City
Sep 7, 2007
#20
  • Sep 7, 2007
  • #20
Axle seal at the end of the tube.
 
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