Your search for "1969 firebird vibration dampener brackets" revealed the following:
KICKDOWN SWITCH BRACKET ,2 BBL, 67-9 FIREBIRD 65 LEMANS
Regular price $45.00Kick down Switch mounting Bracket, mounts on 326" or 350" with 2 barrel carburetor , passing gear, used OE# 9783592...
STEERING COLUMN SUPPORT RODS, 69 FB, PAIR, STEERING COLUMN TO DASH
Regular price $70.00Steering Column support Rods, 69 Firebird, pair, steering column. to dash
FRONT SEAT REINF BRACKET ,RIGHT 67-69 CAMARO FIREBIRD
Regular price $43.00Front Seat mounting bracket, passenger side, steel repro, welds to floor, reinforces floor, mounts under seat pedestal, has nut to...
FLOOR & TUNNEL BRACE ,CONVERTIBLE 67-69 CAMARO FIREBIRD
Regular price $115.00Under floor pan cross bracket , convertible floor reinforcement , welds under floor, under front Seat , steel repro, welds from rocker...
REAR AXLE BRAKE LINES, 69 FB, 2 PIECES, STAINLESS STEEL
Regular price $37.00Rear Axle Brake Lines,69 Fb,2 pieces, stainless steel
FRONT CALIPER BRACKET, RH, FRONT, 69 F-BODY 69-72 A-BODY GP, 69-74 X-BODY 70-2 MC
Regular price $120.00Front Caliper Bracket,RH,frt69F,69-72A,Gp,69-74X,70-2Mc
FENDER TO RADIATOR SUPPORT BRACES, CHROME 67-69 CAMARO FIREBIRD
Regular price $45.00Fender Braces,chrome tubes, fender to radiator support, new repro pair, Fits: 1967 1968 1969 Camaro Firebird
FIREWALL TO FLOOR BRACE ,LEFT 67-69 CAMARO FIREBIRD
Regular price $50.00Firewall to floor reinforcement bracket, driver side, welds on floor , steel repro, Fits: 1967 1968 1969 Camaro Firebird
VISOR BRACKET, LH, CONV, 68-9 F-BODY, REPRO, BRIGHT CHROME
Regular price $47.00Visor Bracket,LH,Conv't,68-9 Frepro,brite chrome