TSW Man said:The floating washers in the bolt holes make up the system called " Vari-fit ". They are moved to one of either 5 fitments to get the desired P.C.D. also known as stud pattern. Rotation of the vari - fit system can give you the following P.C.D's. 5x100,5x110,5x112,5x114.3 & 5x120.