Seriously, don't waste any (more) time debating lubricants. I must have spent a solid week of ~2hrs a day online reading old threads about lubes (for my truck).
In the end, it probably doesn't matter at all for the purposes our trucks see (even for die hard mudders like MoJ
).
All the same, I like to prep my truck as if I'm heading to the most remote parts of Alaska next week, then spending the following month underground in a mine in New Zealand, followed by a three-month trek through south Africa. Sadly, I still don't have a ham radio up and running, and my fuel tank would never hold enough to get me to any of these places (and my wallet wouldn't respond well to the fuel prices anyway!).
Soooo, in the end it seems everyone on the board said to use the moly fortified everywhere EXCEPT the wheel bearings (the short story is that the moly will keep the bearings from rolling properly). Note, this is apparently not the case with the trunion bearings b/c of the extreme loads resting on them (plus, they sit in the moly-filled hub and the grease exchange that occurs makes using non-moly nearly pointless - though some non-moly would remain in the bearings).
For the wheel bearings, the choice non-moly lube on the boards is the Mobile 1 red stuff and you won't need all that much as you are just packing the two outer wheel bearings. Using my handy bearing packer gadget (probably not worth your effort or money) I used less than tube/can of the Mobile non-moly red stuff.
As for the birfs and hub, moly is definitely the way to go and the short story is that the petroleum engineers on mud say you need 3% moly or better. The easiest way to source this is from Napa. They stock Valvoline Palladium tubes (and the price happens to be pretty cheap too). Better still, they will let you return whatever you don't need. I stopped by the Napa on Watson in Crestwood (close to your office MoJ) and purchased an entire case of the Palladium. I took back some, but kept two tubes (I dont' recall why). Napa can also order another version of the Valvoline that is 5% moly. I would have used this but it is special order by the case only and no returns on the unused portion. All that would have been fine with me, but it required something like 2 weeks to get it and I was ready to go NOW when I walked into Napa. Moreover, the petroleum experts on mud indicated that even the 3% moly was well above anything needed for what we do in the states and 3% would probably even survive coal mine use (5% would be spec for a rig spending its life in a coal mine).
To sum up, I used something like 3 tubes of Valvoline Palladium in the hub and birf FOR EACH SIDE totaling about 6 tubes combined. I used 1 can/tube of non-moly Mobile red stuff for the wheel bearings. I used about 5 of the large bottles of Mobile 1 synthetic gear lube combined for all three diffs.
I hope this helps, and I highly recommend you stop over-analyzing this issue as no good will come from it.
See you this weekend.
.