440 crawler transmission fluid

[Eli]

Hello, i'm trying to find out what to use for transmission fluid in the 440icd, i already drained mine and i have to move it from where it sits.
I bought some 75w140 but was reading that it may attack the brass or something? Manual says 80w but that is not the same as 80w90? I don't recall seeing 80 at the store.

[Lavoy]

Any GL5 of your choice will be fine.
Lavoy