Part numbers for fronts:
2 x 47715-22070 Pin, Cylinder Slide
2 x 47715-30060 Pin, Cylinder Slide
2 x 47769-50010 Bush, Cylinder Slide
2 x 47775-30070 Bush Dust
Part numbers for rears:
2 x 47715-22070 Pin, Cylinder Slide
2 x 47715-22080 Pin, Cylinder Slide
2 x 47769-50010 Bush, Cylinder Slide
2 x 47775-30070 Bush Dust
Looking at the parts, it does look like you could if needed or wanted to, use 4 pins of either type. Personally, I would use atleast one pin on each side that has the bush on it, as that would tend to stop any rattles.