To clarify Martin's post, second gem camaros and firebird fit nicely. The 3rd gen are wider.

Here's a link that is helpful if you have trouble finding that rear end. Someone correct me if I'm wrong, but I believe the truck rear ends are very close in width all the way up to '70.

http://www.carnut.com/specs/rear.html


1970 Chevrolet C10
Grandpa's -- My first truck -- In progress to shiny
Follow the build in the Project Journal
1950 Chevrolet 1-Ton Dually
"Ole Red Girl"
In the Stovebolt Gallery
More pictures here
1951 GMC 9430 1 ton dually--Shiny! | 1972 Chevrolet C20- Rusty- the puzzle box lid for the C10 | 1962 AMC Rambler American- my wife's
Parts trucks-
1951 GMC 9300 | 1951-GMC 9430 | 1951- Chevrolet 1300