Camaro/Firebird sub frames

[GhostTown]

I'm hoping to get the truth about Camaro/Firebird sub frame use on the front of Advance Design trucks.

I read and I read and I read and I continuously see contradictions concerning width. One person will say they are two wide.... PERIOD. The next will say use 78 through 85, another says only first generation Camaro clips, then only use second generation clips, or don't use second generation clips but anything else.... bah!!

I would like to see it hashed out by those who know, or have had problems.

I have a '79 Firebird clip on my truck. We measured it and it was the same width as the stock front end before we put it on. That has been 5 years ago now, so I can't go back and double check. Anyway, it seems to fit just fine. I've had to steer it from one place to another during this build process with the stock Firebird wheels on it as you see below, and it hasn't rubbed yet.

Does it look wrong? Hell, I don't know.