can the aftermarket underdrive pully on my zc fit on my d16z6?(dont see why not)
will the zc jg throttle body fit in my d16z6?(im pretty shure it will)
how can i tell if the tranny i have is an si or zc? the axle's look the same to me.

 

the pulley & tb should fit fine; i'm not sure of the tranny visually- i know the fd is different.

 

well a zc diff requires an intermediate shaft and 2 axles.

as for just the tranny, i'm not too sure.