Upper All 1950 to mid 1955 cars use 2

Lower aka jounce bumper All 1950-66 cars 1963-83 Avanti use 2

Upper All 1947-49 cars use 2

Upper 1955-56 Packard

Lower inner All 1951-52 cars

Lower outer All 1951-66 cars All 1963-83 Avanti use 2

Upper inner All 1951-52 cars R3 R4 Avanti uses 2

Lower inner All 1950 cars use 2

Lower inner All 1947-49 cars use 2

Lower outer All 1947-50 cars 2 per car

Upper inner All 1950 Commanders 2 per car

Upper inner All 1950 Champions 2 per car