ALL evo 1,2,3's have rear lsd's (evo 1 gsr has a viscous lsd, all the rest have plate type).
A viscous front lsd was an option on all of them, more RS's than gsr's have this option, but not all of them (maybe half?)
The viscous front lsd was also an option in 1.8 gsr's and rs's, but with the...