Years ago I was trying to fit some early 80's 14x8 Supra wheels on my 240z & ran into the same problem, but on the front wheels only. I took all 4 wheels to a machine shop where they charged me $10 a wheel to enlarge the center bore. This was back in 1990 or so, so your machine shop may differ...

95 Montero SR
3.8 MIVEC, Advance headers, 2 1/2" exhaust, Magnaflow muffler, OME shocks & rear springs, 2" body lift, 3" tank lift, 4.90s, TRE front locker, factory rear locker, Roger Brown Rock Sliderz, 315/75r16 (35") tires, Sport big brakes