One common rusty area of most S30 Z’s are the floors. The only supplier of floor pans i know is from zeddfindings  (https://www.datsunzparts.com/ ). They look good at first sight, but upon closer inspection they don’t fit really well. The main Problem beeing the longitudial Bump in the the middle which should be above the frame-rail isn’t aligned properly. So basically you have to cut it up and re-do most of the work. That’s what the bodyshop told me when i brought them my floorpans for repair, And some readers confirmed that. Allthough many say they haven’t had any problems with those pans too. Maybe it was just a bad…