I have an 85 2+2 5 speed 300zx... love the car.
However, there's some rust... the rear subframe mounts have 3 bolts on each side. one large 17mm, and 2 smaller 14mm. The 14mm bolts go through the floor pans, while the 17mm bolts to the chassis. Well 276,000 miles later, the floor pan rusted completely through. Both sides seem to sag into the floor.
How should I properly fix the panel?
What I was thinking of doing was jacking the car up so its NO stress on the subframe assembly, and then welding my own panels in from there. Good idea?
, on Flickr