Your search for "1969 firebird vibration dampener brackets" revealed the following:
CONV QUARTER REINFORCEMENT MOUNTING PLATE, 67-9 F-BODY, CONV, W/3 THRD HOLES
Regular price $8.00Conv Qtr rnfcmt mntg Plate67-9 F conv't, w/3 thrd holes
CRANKSHAFT REAR BEARING SEALS, OHC 6, 66-69 FIREBIRD TEMPEST
Regular price $68.00Crank shft rear main bearing oil seals , upper & lower kit, for OHC 6 230 , 250 Pontiac over...
ENGINE LIFT BRACKET ,USED 64-72 PONTIAC
Regular price $12.00Engine Lift Bracket , used , each 64 65 66 67 68 69 70 71 72 Pont, Firebird, Trans...
DEFROST DIVERTOR DUCT ,USED 69 FIREBIRD
Regular price $99.00windshield defroster Deflector Duct, diverts air from floor to defrost duct, for air conditioned cars, used , OE# 9796116 ...
BATTERY CABLES, 69 FB, V8, PR, ORIGINAL SPRING RING CABLES
Regular price $60.00Battery Cables,69 Fb,V-8, proriginal,spring ring cables
CONV TOP HOLDDOWN CABLE, 67-9 F-BODY, FITS LH OR RH, USED
Regular price $16.00Conv Top Holddown Cable,67-9 Ffits LH or RH, used
AC COMPRESSOR REAR BRACKET ,TRIANGULAR, NEW 70-81 PONTIAC'S
Regular price $18.00Air Conditioning Compressor rear mounting bracket, new repro, triangular shaped, for V8 motors with A6 axial type compressor OE# 480526...
QUARTER GLASS REGULATOR, RH, 67-9 F-BODY, MANUAL, USED
Regular price $70.00Quarter Window Glass Regulator, PS, 67 68 69 Firebird, Camaro, manual, used
EXHAUST MANIFOLD, LEFT USED 69 FIREBIRD CATALINA 9796155
Regular price $150.00Exhaust Manifold , driver side, used ,V8 350 400 455 cast# 9796155 Fits: 1969 PONTIAC Firebird Catalina Bonneville