I use LiquiMoly GL5 SAE 85-90 in my older Benz and UJ100s that spec SAE 90 for my ambient range temp.
I also used Delo Syn-Gear XDM SAE 80W-140 for long 8-hour+ per day cross-country runs on my panthers (WA-FL-Quebec-WA).
That was just a suggestion ("you could consider" above), your application may be just fine with 110. In my case I want to be safe for the application I have. I did have a rear diff failure of one panther after prolonged daily runs using otherwise excellent Delo ESI 80W-90, but that unit was known to be a weak spot in that kind of application - I remember that Ford even had a TSB for some of those.
85W-90 is very share-stable, and it is important in my case.
Originally Posted by MolaKule
I recommend a 75W110 as an all-around differential lubricant and that is what I use in all of our four-wheel drive vehicles.
I was going to suggest a 75W140. BUT, when MolaKule makes a recommendation, I would go with what he suggests.