Hey,
Just got my first commodore, and looking to upgrade the diff, to give a bit more power off the line. I have searched around but a lot of its still not making sense.
I think i am looking for 3.08? What other options are there and what advantages do these have, im not worried about LSD, it would be nice but not essential.

Also are they relativly easy to fit, or would it be better to pay to have it fitted?
And if any perth members are around, where is a good place to either purchase or fit?

Cheers guys