MMM Gear Box lube

[Wyobuckaroo]

I've got an older JD 60" MMM deck that I have refurbished for a JD855.
I don't have an owners manual, and have gotten conflicting advice.

What lube should I use in the gear box ?

Thanks
Wyo

 

[kennyd]

GL-5 from JD or any good 90w gear oil will suffice.

 

[JohnDeereHere]

Agreed.I run Lucas Oil 75w-90 in my old 50" and 60" MMM.