RuffStuff Specialties R1208 4 Inch Small Shackle Side Plate 4 Inch Measurement Center-To-Center Bolt Hole Dimension And 6 Inches Overall Length Sold Individually. Will Need 2 Of These Plates For 1 Spring. Due To Different Applications, Does Not Include Bolts Drilled For 1/2" Mounting Holes, Can Be Drilled For Larger Bolts If Needed