What's the ratio of that differential? It depends on its origin, it's from altezza has ratio 4,100, it's from European IS200 has ratio 3,909 (LSD type).
I said to you that it interested one to me.
4.100:1 is for Lexus IS200/ Altezza AS200 with automatic transmission, and never an LSD afaik
3,909:1 is for Lexus IS200/ Altezza AS200/RS200 with manual Aisin AZ-6 Gearbox.
Cheers,
RX-Men-8
But in the EPC exist 4,100 lsd and 4,300 lsd, see the pictures: