Frame dimension for C-GT Body

[Don Birnie]

Good Evening Folks

First I'm not sure if I should post this question here or in a Restoration thread.
What I'm looking for are the dimensions for the lonitudinal sills and the crossmembers for the C-GT
I rememder seeing pictures of the body with dimensions but I can't seem to recall where.
I'm pretty sure that the sills and crossmembers where made of 10 gauge steel bent in a u shape.
Any and all information will be greatly appreciated.
Thanks in advance.

Slainte
Don Birnie