this is the third of three posts:
So the second gen firebird essentially went through four front end phases, and three rear end phases;
Front end:
1) 70-73; single headlamp; front end blends into hood
2) 74-76; single headlamp; front end blends into hood
3) 77-78; dual headlamp; front end no longer blends into hood
4) 79-81; dual headlamp; front end no longer blends into hood
Rear end:
1) 70-73
2) 74-78
3) 79-81