Fluid for the 6 speed gear box and differential

[yaofeng]

What fluid should I use for the 6 speed gear box and the differential?

[632 Regal]

auto trans in the 540?

you have posi in the rear?
(you have LSD sounds so '70s ish)

[yaofeng]

The 5 speed gear box on my 525 says ATF. Don't remember seeing the same on the 6 speed package in my garage. What is Posi?

[632 Regal]

same thing as LSD...

What is Posi?

[Ausmpower]

Posi is so american, maybe Hydrotrac.....