Replacement rear ends for 69 dart?

Has anyone ever put an E body axle in a 67-69 Dart? I wouldn't think E bodies would be any wider than B bodies, but you never know. I think I have a B body axle in my 67 already, but it's an 8.25 and I'd like to upgrade and would appreciate knowing what to look for. I'll be putting a spring offset kit in most likely anyway, so moving mounting pads around isn't a problem. The current axle is also already the big bolt pattern with 2.5" wide brakes, so if I could keep them that would be nice since I just bought all new shoes and drums.