Hey thanks! Yea it's probably an A-body rear your right! If my wheels were 4" backspace they'd be perfect! Little close to the springs with 4.5"...but that's what I had to get. They work until I move the springs in and get 10" wheels!
The frame connectors are from a member SeymourScamp here on FABO!
http://www.forabodiesonly.com/mopar/showthread.php?t=124360