Sean?

The tag will say something along the lines of "Slip resistant diff, use only approved fluid"

The tag is on the filler plug(bolt) unless you have a V8 VN commodore which had a red rubber grommet instead of a bolt.

Anyway, the tag should say, HIGH PERFORMANCE SLIP RESISTEN DIFFERENTIAL, APPROVED FLUID ONLY.


Then there is another tag on the side between two of the cover bolts, this holds the tag with your ratio on it. should say 292, or 308 or 323 or wahtever.

spinning one wheel also determines, as both should spin the same way, or if its a single spinner, they'll spin opposite ways. Also ripping a skid doesn't always justify an LSD cos it could be worn. And its bad for the environment, think of the dolphins. Oh and getting a single spinner to spin up both wheels isn't all that hard


Cheers