Thanks for the information. It came out of my 67 firebird convertible. It has both the lower left and right control arms. I am in the process of putting Hotchkiss suspension on it and replacing all the bushings. I am trying to find out if its the correct rear end. It appears to be.
How do I know if it is a safety track diff, posi of some kind, or an open diff. Someone else on another site seems to think its a posi diff.
