Camber and worn bushings

[95se]

I took my car to Dallas frame and alignment today. My car is stock height. He said that there was too much negative camber in both the front and rear. The rear couldn't be adjusted anymore because of its age. It was way too much for a 240sx more like a BMW M3. I don't know what the factory specs are but he told me mine was Front - drivers: -1 passenger: -5/8
Rear - drivers: -1 3/8 passenger: -1 3/8.

Anyone know what that is compared to factory. He says I need camber kit for rear and like a camber screw for the fronts. Also, I think the bushings for the Diff to rear subframe are gone and maybe the rear subframe bushings. When I shift into 1st or reverse there is a clunk. I would think it would be the ones between the diff and subframe but have also been told it would be the rear subframe bushings. They told me that this would affect an alignment as well.