I think my wheels are 4+3 off-set, but not sure. Mine are 14x7 all the way around. I have no problem with them. They were meant for a Grizzly, which is what I first bought them for. They gave me a little extra width, which was fine with me since I added a lift and wanted to keep the stability. I have 10" wide tires in back an 9" in front. I'd like to have wider in back, but don't have any problems so far with the 10s. I haven't had a chance to get it in real mud yet, though.

Thank you, I may keep to the standard wheels and keep to the original tyre sizes as they seem to be wearing evenly front and rear.

Me personally I think 12 inch wheels are the way to go. All 4 the same size and offset with a tall 10 inch wide on all 4 corners. All the benefits of better ride, more clearance, the ability to air down further, without making the buggy wider and taking as much weight penalty using excessively wide rear tires and no additional strain on the steering.