13 NOS 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 FORD BIG TRUCK BRAKE SHOE SCREW SCREWS PART# C8TZ-2041-C 1963 1964 1965 1966 1967 1968 1969 B-F600/750 C-N600/850, F-T800/850, NT850 "From Ser. C70,001" BIG TRUCK.