Your search for "1969 firebird vibration dampener brackets" revealed the following:
CONV TOP FRAME RAIL, 67-9 F-BODY, LH, FRONT SIDE, POWER TOP, USED
Regular price $200.00Conv Top Frame Rail,frt,67-9 FLH,front, side,power top,used
PARK PEDAL PAD ,NEW 69-81 F- X-BODY 78-88 G
Regular price $7.00Parking or emergency brake Pedal Pad, new rubber OE# 25506817 1969 1970 1971 1972 1973 1974...
RADIO KNOB, INNER, SELECT, 69-70 PONT, TUNE, USED
Regular price $30.00Radio Knob, inner, select, 69-70 Poinner, tune, used
THROTTLE CABLE CLAMP, NEW, 64-71 PONTIAC
Regular price $16.00Accelerator cable clamp, mounts on intake bracket, new repro OE# 9775929 Fits: 1964 1965 1966 1967 1968 1969 1970 1971 GTO...
FRONT BRAKE LINE KIT, 67-8 FB ,POWER DRUMS, STEEL, 4 PC
Regular price $60.00Front Brake Line Kit,67-8 Fbpower drums,Steel, 4 pc
DOOR GLASS TRACK ,FRONT RIGHT VERTICAL USED 68 69 F-BODY
Regular price $35.00Door Glass window Track, passenger side, front Vertical channel, used original, 7734316 Fits: 1968 1969 Camaro Firebird
RADIATOR OVERFLOW TANK BRACKET, USED 76-81 TA FIREBIRD
Regular price $20.00Radiator coolant anti freeze Overflow bottle or Tank Bracket, used, mounts on wheel well, FITS: 1976 1977 1978 1979 1980...
LASH ADJUSTER ,OHC6 EACH NEW 66-69 FIREBIRD TEMPEST
Regular price $39.00Lash adjuster or lifter tappet, new , each, for OHC 6 230 , 250 Pontiac over head cam 6 cylinder...