U-Joint Leaking?

S

savegoodautonfg

New Member
May 11, 2005
1,085
0
0
#1
I was under my car yesterday and i was installing turndowns for dumped mufflers and i noticed the u-joint closest to my rear end was leaking not alot just a drip off it. then i wiped it and a few hours later there was'nt another drip. not dripping alot but why not fix it. anyone know what it could be and how to fix it?
 
#2
It was either just grease, or fluid from someplace else. There is no fluid in a u-joint to leak. There is grease on the needle bearings, but that's it.

What color was the fluid? What consistancy was it? What did it taste like?
 
#3
How is the pinion seal on the rear end? Fluid can run down the flange and DS and drip off the u-joint.

U-joints themselves use high temp grease, which shouldnt get viscous enough to drip like a fluid.

Good luck.
 
#4
HISSIN50 said:
How is the pinion seal on the rear end? Fluid can run down the flange and DS and drip off the u-joint.

U-joints themselves use high temp grease, which shouldnt get viscous enough to drip like a fluid.

Good luck.
Click to expand...

I don't know how the pinion seal is all i know is i changed the diff fluid like a month ago. it was defiently dark in color and i could'nt see any fluid on the driveshaft or anything. after i wiped the drip off u-joint u could se it was a little wet in there at the seal of u joint and driveshaft i think it is.
 
#6
Take a look at the back of the differential where the DS bolts to the diff. See if it's wet at all. Also look at the back of the mufflers and above the differential and DS to see if you see wetness (a pinion seal leak will allow fluid to get flung around as it hits the spinning DS).

Check the U-joints for tightness and issues. If they have a zerk fitting, I'd lube them up.

Good luck.
 
#7
HISSIN50 said:
Take a look at the back of the differential where the DS bolts to the diff. See if it's wet at all. Also look at the back of the mufflers and above the differential and DS to see if you see wetness (a pinion seal leak will allow fluid to get flung around as it hits the spinning DS).

Check the U-joints for tightness and issues. If they have a zerk fitting, I'd lube them up.

Good luck.
Click to expand...

WHAT YOU MEAN ZERK FITTING?
 
#8
It looks like almost like a bleeder screw, but DON'T TRY TO UNSCREW IT. Look closely at the tip and you will see, what looks like, a ballbearing. Basically the fitting looks like the end of a ballpoint pen...just larger. You use a grease gun to apply high temp grease to the joints themselvs.
 
You must log in or register to reply here.

Similar threads

D
Engine Coolant and Radio Issues
Replies
17
Views
563
Fox 5.0 Mustang Tech
Don7Up
D
N
Edelbrock 1405 Setup
Replies
3
Views
190
Classic Mustang Specific Tech
nathantaylor200
N
M
Engine Unexplainable Exhaust Pop and Gurgle
Replies
12
Views
457
Fox 5.0 Mustang Tech
Noobz347
Noobz347
S
Drivetrain 8.8 Pinion and 302 rear main seal leaks after replacing. 93 5.0 with t-5
Replies
10
Views
596
Fox 5.0 Mustang Tech
Steigy4827
S
2
Electrical mayhem
Replies
2
Views
199
1996 - 2004 SN95 Mustang -General/Talk-
2000ElectricGreen
2
Top Bottom
Back
Forums
Menu