Your search for "1969 firebird vibration dampener brackets" revealed the following:
DOOR JAMB U-SHAPED SEALS, PAIR, NEW, 67-69 CAMARO FIREBIRD
Regular price $18.00Door or quarter pillar jamb,U-shaped seals, rubber, pair, new, reproduction Fits: 1967 1968 1969 Camaro Firebird
HEADLINER BOW KIT, NEW 67-69 CAMARO FIREBIRD
Regular price $80.00Head liner Rod or bow Kit, 5 rods, new repros Fits: 1967 1968 1969 Camaro Firebird
DOOR GLASS REGULATOR, RH, 68-9 F-BODY, STANDARD, INTERIOR, REPRO
Regular price $115.00Door glass regulator, RH ,68-9 F body, standard interior, reproduction
DOOR GLASS TRACK HORIZONTAL, 68-9 F-BODY, MOUNTS ON GLASS, USED
Regular price $20.00Door glass Track,hztl,68-9 Fmnts on glass horizatial,used,
REAR SEAT UPPER FILLER ,COUP LEFT USED 67-69 CAMARO FIREBIRD
Regular price $125.00Rear seat upper Filler, driver side, used, steel panel, paint to match, coups, 67 Camaro with deluxe interior or cars...
CONVERTIBLE TOP LATCH BOLT, USED 67-69 CAMARO FIREBIRD
Regular price $25.00CONVERTIBLE TOP LATCH BOLT, EACH USED, 7/8" head OE# 7639101 FITS: 1967 1968 1969 CAMARO FIREBIRD
DOOR GLASS TRACK ,LH VERTICAL REAR USED 68 69 F-BODY,
Regular price $40.00Door window Glass channel , driver side , vertical ,back of glass, used OE# 7734319 Fits: 1968 1969 Camaro Firebird
PILLAR WEATHERSTRIP RETAINER, CONVERT LEFT USED 68 69 CAMARO FIREBIRD
Regular price $175.00Windshield Pillar weather strip Retainer or molding, Driver side, convertible, U shaped channel, stainless steel, 18.5" long used Fits: 1968...
SPEAKER HOUSINGS ,CONV, PR, 67-9 F-BODY
Regular price $40.00Rear Speaker Housings , for convertibles , cardboard , new pair Fits: 1967 1968 1969 Camaro Firebird
QUARTER TRIM PANELS, DLX, CONV, 68-9 F-BODY, UNASSEMBLED, BLACK, PAIR
Regular price $65.00Qtr Trim Panels,Dlx,Conv,68-9FUnassmyed, Black, pair