I don't get it brother?
Why don't you just use -
Category: Gear Oil.
Product Name: TOYOTA MG GEAR OIL SPECIAL-II GL-3 75W-90.
Part No: 08885-01513
API: GL-3
SAE: 75W-90
Volume: 20L
What is it that your looking for? Isn't it a Toyota Tranny? Wouldn't it be better to use your own materials?