How does this gear oil cocktail for my Strange 12Bolt w/ 4.11 Detroit TrueTrac sound?
09-27-2011, 09:34 PM
#1
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How does this gear oil cocktail for my Strange 12Bolt w/ 4.11 Detroit TrueTrac sound? I wanted to go with Schaeffer's 209A or 267 but it's too hard to find in quarts or liters, so how about this cocktail?
1 Liter of Torco 80w-90 RGO
1 Liter of Torco 85w-140 RGO
5 ounces of Lucas Conventional Oil Stabilizer
1 Tube of Lubri Moly MoS4 Gear Friction Reducer Additive
Or Should I go with more Torco 85w-140 instead of the Lucas? If so why?
Any resident oil experts on here?
1 Liter of Torco 80w-90 RGO
1 Liter of Torco 85w-140 RGO
5 ounces of Lucas Conventional Oil Stabilizer
1 Tube of Lubri Moly MoS4 Gear Friction Reducer Additive
Or Should I go with more Torco 85w-140 instead of the Lucas? If so why?
Any resident oil experts on here?
09-27-2011, 09:41 PM
#2
I run 85w140 Torco RGO - 2 quarts + one bottle of Ford Racing friction modifier, but I have an Eaton HD posi in mine that requires non-synthetic along with the friction modifier. I don't think the TrueTrac requires any sort of friction modifier, but I could be mistaken.
I settled on this combination after asking a few people on here that seem to be in the know.
I settled on this combination after asking a few people on here that seem to be in the know.
09-27-2011, 09:52 PM
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Yeah I know the TT doesn't need friction modifier. But I'm thinking some extra moly sulfide wouldn't hurt, and a touch of lucas "oil honey" to make it really clingy.
Eaton recommends a mineral based 80w90 for the TT. I'd like to use an 85w-140 to add some extra "shock protection" IF it won't negatively affect the bias ratio of the TT. If that's gonna be a problem would it be better for me to use Schaeffer's #267?
Eaton recommends a mineral based 80w90 for the TT. I'd like to use an 85w-140 to add some extra "shock protection" IF it won't negatively affect the bias ratio of the TT. If that's gonna be a problem would it be better for me to use Schaeffer's #267?
09-28-2011, 07:22 AM
#4
The TrueTrac is a gear differential, correct? I can't see how oil would affect it's bias ratio if it was, but then again, I'm no expert.
You'll have to trust me when I say that the Torco 85w140 by itself is pretty damn clingy...it's honestly kinda like snot when I remove the diff cover. They make pretty good oil for this application.
You'll have to trust me when I say that the Torco 85w140 by itself is pretty damn clingy...it's honestly kinda like snot when I remove the diff cover. They make pretty good oil for this application.
