OK this is what is on my PK10005D as for the wheels. the lugs are 4 x 136 12 mm stud. the front wheel is a 7 inch rim and it is a 5x2 as what they are saying here but it is a 1.5 positive offset. The back wheel is 9 inch wheel 6x3 but it to is a 1.5 positive offset. I put the rear wheel on the front and the front on the rear and the only thing that happened was when you turned the wheels all the way on each side the inside of the wheel would rub a wheel stop that is on the A arms on the back side of the A arms. Now if you were to dismount the tire I am sure the measurement would be close to what i said. So I want to put the same tire all the way around and new wheels. I think if I can find them. 10 or 11 inch wide tire on and 8 inch wheel at a 5/3 with a 1 inch positive offset that would make the front 2 inches wider than stock at the wheel. Do the same on the back i will get 1 inch more clearance on the inside, on each side. I THINK I HOPE!