Leaf Spring, 3 leaves, low arch. Measurements: Center bolt to leaf end (A): 21 1/2″, Center bolt to leaf end (B): 22 3/4″, Arch (C): 3 1/4″, Pack Thickness (D): 2 15/16″, 3″ width, 12,000 lbs. capacity. TRA2741, 365-01WARNING This product can expose you to chemicals including Lead, Nickel, Carbon Black, Chromium VI, and other Compounds which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.