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U-Joint Failure, was it the grease? #4682916
03/03/18 04:38 AM
03/03/18 04:38 AM
Joined: Jul 2008
Posts: 301
Bucks, PA
zfasts03 Offline OP
zfasts03  Offline OP
Joined: Jul 2008
Posts: 301
Bucks, PA
A few years back I had to change the U-Joints on the front axle shafts of my 1997 Dodge Ram 1500 4x4. (Dana 44 axle)

I used:
- Moog Super Strength U-Joints (with zerks)
- Pumped U-Joints full though the zerks with Amsoil Dominator Synthetic Racing Grease (no moly), prior to reinstalling the shafts in the axle

About 3000 miles later the joints failed, binding and getting real hot.

2nd time around I used Spicer U-joints (no zerks) and all is good for years now.

Upon disassembly of the failed Moog joints the roller bearings/grease had fused themselves as one. There was no longer any roller action of the bearings and major friction and heat was happening.

So since then I am hesitant in using Amsoil Racing grease.

Did I do something wrong with installation? Or are the Moog joints not good for this application? The Moog joints seemed to install fine and movement was good without binding when reinstalled.



Last edited by zfasts03; 03/03/18 04:39 AM.

03 Corvette Z06
-Amsoil 5w-30 SS
07 Honda Accord 2.4L
-Amsoil 5w-20 SS
16 Suburban 5.3L
-M1 0w-20, XG10575
18 4Runner TRD Off Road
- Amsoil 0w-30 SS, TRD filter
Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4682929
03/03/18 05:44 AM
03/03/18 05:44 AM
Joined: Oct 2017
Posts: 812
Georgia
MParr Offline
MParr  Offline
Joined: Oct 2017
Posts: 812
Georgia
Could have been the grease. A NGLI#2 lithium type grease is normal for the application. The Spicer joints cost a little bit more than the Moog and there may be a reason for that. There are several brands of grease that meet the NGLI#2 specs that work well in u-joints and wheel bearings. Valvoline Durablend Synthetic Blend Grease is the one I keep around.
https://www.valvoline.com/our-products/grease-gear-oil/synthetic-blend-grease
Mobile One is another good choice
https://mobiloil.com/en/synthetic-grease/mobil-1-synthetic-grease


2013 KIA Optima EX 2.4L. Now: QSUD 5W30 & STP S2808ML
2017 Ford Escape SE 2.0T Now: Mobil 1 5W30 & NAPA Gold 1348
Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4682932
03/03/18 05:48 AM
03/03/18 05:48 AM
Joined: Dec 2012
Posts: 562
Cave City KY
jakewells Offline
jakewells  Offline
Joined: Dec 2012
Posts: 562
Cave City KY
I use moly ep grease in my u-joints never had a failure except on the non greasable bearings.

Last edited by jakewells; 03/03/18 05:49 AM.

1994 Ford F150 302 4R70
Chevron Delo SAE 30 CF/SL Fram XG8A

1978 Chevy Nova 250 I6 Borg Warner T5
Rotella 10W40 Fram XG5

Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4682937
03/03/18 06:11 AM
03/03/18 06:11 AM
Joined: Dec 2002
Posts: 41,966
'Stralia
Shannow Online content
Shannow  Online Content
Joined: Dec 2002
Posts: 41,966
'Stralia
Too many variables to say either way.

If the zerks were in the centre of the crucifix, then the centre section would have been beefed up to handle the extra equipment and porting...my in and of itself have been binding.

You changed two things

Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4682943
03/03/18 06:17 AM
03/03/18 06:17 AM
Joined: Nov 2006
Posts: 20,779
MA, Mittelfranken.de
Trav Offline
Trav  Offline
Joined: Nov 2006
Posts: 20,779
MA, Mittelfranken.de
So many variables. Moog is not a manufacturer of U Joints, hub bearings, etc they source much of that line from China so God know what you actually got. Poor quality part, lube fail, buggered installation, take your pick your guess is as good as mine.


ASE L1, Master. Deutsch Meisterbrief.
Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4682949
03/03/18 06:36 AM
03/03/18 06:36 AM
Joined: Jul 2009
Posts: 822
texas
danez_yoda Offline
danez_yoda  Offline
Joined: Jul 2009
Posts: 822
texas
I replaced failed spicer non zerk ujoints on my 07 tacoma a few years ago. I put moog zerk ones with the zerk on one of the caps instead of the cross. These zerks are smaller than standard and a pita (you need a special tip to greas them) but they have been good. I grease them every 5k with grean grease NLG2. Nothing special about this grease, it was i picked up for my boat trailer bearings. It seem s to work fine for ujoints. Probably 20k miles on them.

Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4682955
03/03/18 06:43 AM
03/03/18 06:43 AM
Joined: Sep 2013
Posts: 10,785
Indiana
dlundblad Offline
dlundblad  Offline
Joined: Sep 2013
Posts: 10,785
Indiana
Hard to blame any sort of grease on a failure in 3000 miles unless you used JB Weld. laugh

I blame junk parts.


03 Jeep WJ 4.0 202k Edge 10w40 HM Fram XG16
02 Volvo S60 2.4T 186k M1 0w40 Mahle OX149D
97 Chevy Blazer 4.3 153k Synpower 5w30 Supertech ST3980 (Ecore)

Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4682976
03/03/18 07:21 AM
03/03/18 07:21 AM
Joined: Jun 2002
Posts: 12,727
The Motor City
Kestas Online content
Kestas  Online Content
Joined: Jun 2002
Posts: 12,727
The Motor City
It sounds like the grease in your failed u-joint lost its oil and left only thickener. U-joints actually need a lighter grease like Grade 1.5, so it can flow back under the needles after being pushed aside.

There is a good grease for this application. It is Kluberplex BEM 34-132. It is calcium based to resist washout, good for 2000 hours at elevated temperatures, and the product data sheet mentions it is good for micromotion applications.

Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4683000
03/03/18 08:04 AM
03/03/18 08:04 AM
Joined: Dec 2002
Posts: 42,472
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,472
New Jersey
Thinking out loud - if they were "pumped full", could these be too full, sort of like electric motors, where too much can be far worse than too little?

Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4683001
03/03/18 08:07 AM
03/03/18 08:07 AM
Joined: May 2010
Posts: 9,627
out there
spasm3 Online content
spasm3  Online Content
Joined: May 2010
Posts: 9,627
out there
I think almost any grease would have made it 3000 miles. I probably would have regreased about the time they failed. I just think poor quality parts.


13 elantra 72k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
17 mazda cx-5 7300 miles m1 0w30
Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4683030
03/03/18 08:43 AM
03/03/18 08:43 AM
Joined: Jun 2003
Posts: 18,045
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 18,045
Deplorable in apple valley, ca


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: U-Joint Failure, was it the grease? [Re: danez_yoda] #4683129
03/03/18 10:49 AM
03/03/18 10:49 AM
Joined: Dec 2016
Posts: 7,480
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,480
Waco, TX
Originally Posted By: danez_yoda
I put moog zerk ones with the zerk on one of the caps instead of the cross. These zerks are smaller than standard and a pita (you need a special tip to greas them) but they have been good.


It's the same "pointed tip" grease gun used to grease the tip sprocket on a chainsaw bar


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4683189
03/03/18 12:19 PM
03/03/18 12:19 PM
Joined: May 2014
Posts: 3,882
Columbus,Nebraska
Yah-Tah-Hey Offline
Yah-Tah-Hey  Offline
Joined: May 2014
Posts: 3,882
Columbus,Nebraska
Poorly made product.

Re: U-Joint Failure, was it the grease? [Re: zfasts03] #4683241
03/03/18 01:49 PM
03/03/18 01:49 PM
Joined: May 2012
Posts: 953
Rio Rancho, NM
Pajero Offline
Pajero  Offline
Joined: May 2012
Posts: 953
Rio Rancho, NM
Definitely equipment failure, not grease. I don't use aftermarket parts for that reason. But, OEM are becoming obsolete for my application.

Schaeffer's makes an outstanding grease! I've heard good things about Amsoil too!



Respectfully,

Pajero!


Always remember "Planned obsolescence."

1994 Montero SR 3.5 DOHC, 133,xxx
Fram Ultra/ Snorkel with Pre-filter
K-9-Co-pilot
Re: U-Joint Failure, was it the grease? [Re: JHZR2] #4683477
03/03/18 06:25 PM
03/03/18 06:25 PM
Joined: Jan 2008
Posts: 390
WV
bchannell Offline
bchannell  Offline
Joined: Jan 2008
Posts: 390
WV
Originally Posted By: JHZR2
Thinking out loud - if they were "pumped full", could these be too full, sort of like electric motors, where too much can be far worse than too little?


According to Spicer and other U joint manufacturers, there is no such thing as 'too much grease'. They recommend pumping them full and pushing grease out of the lip every time you lube. I'll try to find the paper on it and post a link. Ran into this when replacing some joints on my truck.

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