Mainly surface rust, still need to readdress some of the floor issues, not rusted thru but could poss replace it, and the rear valance at the bumper where it ties into the trunk needs some work still, it was a five year push, first engine was out of a 68 impala 307/turbo350, just ripped it out of the donor car and dropped it in til I finished a lot of other things, the turbo 350 was gone thru when I built the 406, and both installed the same time, ford eight inch, with a `67 carrier, 324 posi, home made harness, which is now being updated from ez-wire and some new gauges this year.