diff oil in a posi axle

[1967k10]

Does one need to run anything special in a D60 with a Posi or just plain ol 80/90? Never been around an older Posi. The new Posi axles like in my
D-Max's take 70/110 Syn or something goofy.

Thanks

 

[sweetk30]

80-90 with additive for the clutches in the posi.

 

[1967k10]

OK thanks man

80-90 with additive for the clutches in the posi.