romerider153 wrote:300zx use a short arm long arm front suspension i believe. s chassis use a mcpherson strut setup so they are 100% different nothing is goin to swap over unless u do some serious fab work and mount the whole 300zx suspension onto the s which in your case im pretty sure is out of your reach
The 300zx is macpherson strut all four corners. What is short arm long arm? unequal wishbones??? because the Z does not have that.
The rear Z knuckles will fit on the 240sx rear if either you get the shock absorber modified (or buy one made for this purpose) or get adapter fittings (I have heard of these before but have never seen them). There is no stock parts that will allow you to use the Z knuckle on the 240sx. I don't understand the point of that anyways...You do know that the rear e-brake drum assembly will mount up perfectly to the 240sx stock knuckles right? at least on the s14. I would have to check about the s13. Also the hub/bearing assembly also bolts up perfectly...
zer...a-s13
Also, if you want/need a stronger rear end the r200 swap from a j30 or 300zx is pretty straight forward. You can do a q45 diff swap but it's harder and needs modifications.