I recently put 235/75/r-15 on my 2 door, I started off with the original tire recommended pressure around 32psi. Which was way to high, was really squirrelly on the road, and even worse in the snow. I brought them down to 24psi, which seems to ride pretty nice. I still may go a little lower.
The 2dr is so light, I had a slow leak in one of my tires, and it looked the tiniest bit more squished then the other tires, when I check the pressure, there wasn't even enough to measure on the gauge, I was basically driving around with a flat tire, and couldn't even tell, as there wasn't enough weight to squish to radial tires.