I hear the "120y" had small suspintion for a few years in other contries, but in the us we got mostly 180b struts and brakes that bolt right up, but if your going 15's use the big vented 280zx struts with your coils and perches, people use b210 struts to keep 13"s , and if you go that route use your original strut tops for an extra 1.5" drop, or use the b tops, so you can cut more coils and stiffen it up more