Put 13 stuff in my 86 a few days ago. Including s13 arms. The holes have to be redrilled for castor rod and swaybar link, and inner bush crush tube grinded. It doesnt quite work with standard guards as the only way to make it drivable is to run stupid camber. I knew this but as with everything I do, I do it anyway.. The track increase is great, even with 15.6.5 +20. Not sure why you'd want to run the even longer cressida arms?.. What sort of camber are you hoping for with these?