This top plate for Peterbilt air ride springs is a heavy-duty part that requires no drilling for installation. It is 100% accurate in its fit and is designed for the rear, left or right side of the vehicle. The plate is suitable for vehicles with OE specifications and comes with a 90-day manufacturer warranty. The plate is compatible with multiple OE and interchange part numbers including 301656, 031656D, 03-01656G, 03-01656, 031656B, 03-1656D, CS70741, 0301656G, 03-1656B, and R304781. Its features include a weight of 4.8 lbs and a single-part design. This product is perfect for those in need of a reliable and accurate fit for their Peterbilt air ride spring.