1962 Front Eye uses HB381 Bushing - 2 required per eye or 4 total if ordering pair of leaf springs
1963 - 1966 Front Eye uses HB394 Bushing - 2 required per eye or 4 total if ordering pair of leaf springs
1962 - 1965 (Before 3/5/1965) Rear Eye uses HB387 Bushing - 2 required per eye or 8 total if ordering pair of leaf springs and replacing frame bushings as well.
1965 - 1966 (After 3/5/1965) Rear Eye uses HB387 Bushing in spring eye - 2 required per eye and HB889 Bushing for frame bushing - 2 required per eye. Order 4 HB387 and 4 HB889 if ordering pair of leaf springs and replacing frame bushings as well.