5 bolt rim....4 3/4 inch bolt circle. Measure your backspacing by placing wheel face down on the ground. Get a straight edge that just fits between the outermost flanges of the tire bead. DO NOT touch the tire. Now take a tape measure and measure the distance from the mounting surface of the wheel to the bottom edge of your straight edge. That's your backspacing. It's easier to go with a deeper backspacing and get a wider wheel than keeping the same backspacing as stock and then buying a wider wheel.