Quote:
Originally Posted by 4RExplorer
I found an article saying a moly grease can be used in "any component" in an on-highway, heavy-duty vehicle, but the article quotes Paul Cigala as saying that U-joint manufacturers specify a molybdenum disulfide content of "5% or less" to avoid binding in the needle bearings inside the U-joint:
The fundamentals of truck and trailer grease application | Commercial Carrier Journal
The moly is especially good in sliding applications like the slip yoke because it bonds to the surface of the metal, creating an extra layer for sliding over. Mobilgrease XHP 322 Mine has 5% moly content, so it would probably be OK in the U-joints. But maybe the best way is to just have two grease guns for the two different types of components, and lubricate often.
Thanks for all your comments. |
One can overthink this, but basically 2 greases would probably be best.
There is a reason why Harbor Freight sells moly grease for $8, Spicer grease is min of $20 and a grease like Krytox is $500, in all cases for a 14oz tube.
General rule Better >$. You would be amazed at sone of the higher end tube prices.
MolyD is a mineral and has particle sizes. Google it.
I used MolyD oil for machining and drilling stainless, can't beat it.
For all suspension parts, I use Moly, joints it's Spicer.
I hate changing joints almost as much as paying someone else to do it.
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