Do You Put Anything on the Outside of Differential Bearing Races on Install?
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From: North Alabama
Do You Put Anything on the Outside of Differential Bearing Races on Install?
To install both outer & inner pinion bearing races, I see:
But in all of the YouTube videos I've watched of folks putting the 9-1/4 differential back together (including some professional shops), they either
A) obviously did not put anything on the outside of the race, or
B) they installed the races off camera and never mentioned putting anything on the outside.
Most or all of the folks put bearing grease or gear oil on the bearings themselves, but nothing on the outside of the outer races.
What do you y'all do or recommend?
And what about on the outer races on the carrier side bearings?
Originally Posted by 2001 Dodge Ram Service Manual (page 3-105)
Apply Mopar Door Ease or stick lubricant to outside surface of bearing cup.
A) obviously did not put anything on the outside of the race, or
B) they installed the races off camera and never mentioned putting anything on the outside.
Most or all of the folks put bearing grease or gear oil on the bearings themselves, but nothing on the outside of the outer races.
What do you y'all do or recommend?
And what about on the outer races on the carrier side bearings?
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Joined: Apr 2010
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From: Clayton MI
I don't put anything on the non-bearing surfaces. I may soak the roller part in gear lube, or, I may just pack it with grease for the initial setup. Not sure why they would want to lubricate a part that you DON'T want to spin.....
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From: North Alabama
Sort of what I was thinking, but this is my first time ever doing this and that is in the service manual, so I wanted to check.
My only speculative thought, since I don't know what "Mopar Door Ease" is, but going by that it is a stick, is maybe it's thicker and in this case really used more to hold the race in place....?
My only speculative thought, since I don't know what "Mopar Door Ease" is, but going by that it is a stick, is maybe it's thicker and in this case really used more to hold the race in place....?
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I almost always do a thin layer of wb grease.
99.9% of it is scraped away by the press fit but I figure it helps minimize or prevent galling if something goes wrong during installation (or removal)
I always figured a proper press fit shouldn't be significantly affected by a lubricant used during assembly.
Now, on old school bike grips we used Aqua Net because it allowed the grips to slide on when wet then acted like a glue when dried. But rubber bike grips are just a wee bit different than critical bearing press fits
99.9% of it is scraped away by the press fit but I figure it helps minimize or prevent galling if something goes wrong during installation (or removal)
I always figured a proper press fit shouldn't be significantly affected by a lubricant used during assembly.
Now, on old school bike grips we used Aqua Net because it allowed the grips to slide on when wet then acted like a glue when dried. But rubber bike grips are just a wee bit different than critical bearing press fits
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From: Clayton MI
Yep, just regular ol' wheel bearing grease. I have the red and sticky stuff. And they ain't just a whistling dixie on the 'sticky' part. 
