1977-78 front bumper on an 80 firebird?/

[jonthegreat1000]

can you put a 77-78 front bumper on a 80 firebird with out changeing the fenders? is the trans am 77-81 trans am front spoiler built onto the bumper or does it un bolt i have an 80 firebird that i want to put a 77-78 trans am front bumper and spoiler on .

[jonthegreat1000]

did they come with posi?

[fbody79]

Yes it is very simple, i just did it. The fenders, hood will all line up fine. The front spoiler should bolt on to it. You do need the plastic insert and metal brace though from the 77-78 nose. The 79 reinforcements will not work.
http://i589.photobucket.com/albums/ss336/firebird79_00/005-22.jpg