What's the latest birdcage (complete rear clip from firewall to rear) that I could stuff under my 1969 coupe body?

Thanks,

Ryan

 

The only thing I know for sure is the winshield frame/ firewall was changed when they changed the dash in 78. Minor change to the upper dash mounting? plate. right on the top of the firewall.


Past that I don't know.

 

ttt

 

Like Mike said - up to 77 should fit fine.
I just swapped out birdcage parts between a 75 and 70.
:seeya