Precision U-Joint No. 508. Fits the following:
1949-1955 Ford (rear)
1956-1958 Ford (rear w/ inside lockings)
1949-1954 Mercury (all rear)
Great condition. Contact seller for more information if needed. Tucson Packard quality parts through the years, 40 years experience working with all makes and models of Packard auto and other auto parts. (550)