500 inch stud diameter;Includes new springs and 4 grade 8 bolts;California Residents: WARNING Dana Spicer Dana 1350 Series Drive Shaft CV Yoke - 212019X No more searching high and low in junk yards looking for yokes only to find out that thay are worn out.62 inches across u-joint cap;Bolt hole spacing 2.75 inches side to side;..