Which diff fluid / transfer case fluid to use?75-90 Limited Slip for all?

[Airbornepotato]

I went to Toyota dealer few days ago trying to get fluid for diffs and transfer case.
dealer recommended Mobil1 75-90 Limited Slip for all 3 locations(front , transfer case&rear)

However, the manual i found online saying
Front ----SAE90 Hypoid gear oil GL5
Rear---SAE90 GL5 for Limited slip Diff
Transfer case---SAE75-90 GL4 or GL5.
my question is, they all appears to be SAE 90, and they all appears to be GL5,can i replace all 3 locations with Mobile 1 75-90 Limited Slip oil?
what kind of fluid you all using in your bus?

 

[little_joe]

I used Castrol 85w-90 limited slip gear oil in the rear diff since my 90 has the LSD; and 75w-90 in the transfer case and front diff. Too few miles to make any conclusions, except that everything is fine!

[Edit]I am not smart enough to know if the LSD additives are useful or harmful or benign in the transfer case and front diff. Hoping a Youtube Certified Mechanic can comment lol[/Edit]