ok a slivia (crashed) with a good sr20de and 5 speeed box goes for around a grand . if the silvia is not crashed thats a realy good price

the diff in a silvia is inderpendent so no good for your needs and its not lsd only the turbos are lsd .

the tail sharft is two piece in a silvia so you can only use the end ( yok )

ask maddat on wats involved but i would thinkl the tunnel is the only thing on the chopping block

the sr20de is a slow motor in a silvia it only does a 16.4 standing quarter mile if i was you and was happy with the power of a sr20de i would just get a A15

i made the mistake of thinking a ca18de would be good enoff but it only lasted a week way to slow

my 2 cents