I have some to tokico shocks and aftermarket springs that came off my 1991 300zx.
Nothing is wrong with them, I just upgraded to adjustable coilover shocks.
The struts are tokico (oem) and the springs are tanabe gf210 and can be seen here:
http://www.thezstore.com/page/TZS/PROD/23-3942
The springs will give your Z a drop of about 1"
Looking for 300 obo for everything
Pickup in anaheim hills CA