The spoiler, or rear fin on a Trans Am/Firebird can reveal many things such as: the year, engine type, edition type or model. Spoilers have had a variety of lettering types, pictures, color schemes and layout.
 1970, simple smaller lettering, two tone color. |
 1974, similar to 70-73, with larger lettering. | |
 1975 Trans Am |
 1976, no change from 74 & 75. | |
 1977, Note the gothic style lettering. |
 1978, larger box type lettering. |
|
 1979 |
 1979 10th Anniv TA, note the anniversary bird decal beside the lettering. | |
 1980 Indy Pace Car, note the Indy racing symbol decal. |
 1981 Turbo Trans Am |