Tail Lights
#2
TECH Veteran
From the 1999 Firebird manual, page 6-71:
Replacement Bulbs
Back-up: 3155
Center High-Mounted Stoplamp: 921
Front Parking and Turn Signal: 3157NAK
Headlamp High Beam: 4701
Headlamp Low Beam: 4703
Sidemarker Lamp: 194
Tail Lamp Only: 194
Tail/Stop/Turn Lamps: 3057
Back-up: 3155
Center High-Mounted Stoplamp: 921
Front Parking and Turn Signal: 3157NAK
Headlamp High Beam: 4701
Headlamp Low Beam: 4703
Sidemarker Lamp: 194
Tail Lamp Only: 194
Tail/Stop/Turn Lamps: 3057