I'm in the process of narrowing and rebuilding a GSL-SE LSD rear end. I went to purchase new clutches and the parts guys has asked do you want the 2.0 or the 2.1 thick disks? Well hell I don't know, so I'm hoping y'all can help me.
Why would I want one over the other? The price is the same soooooo?

Thanks .
Matthew

Ya so never mind.

2.0 is new spec.