Thank you very much for the reply it is on a a body housing I'm moving over 1/2 inch just like yours thanks you wouldn't happen to have a picture of that bad boy would you
What brakes are you using? It matters. A-body brake stand-off is a different length than the BBP axle brake offset used on other body styles. I've got BBP axles and associated brake offset on my Dart.
Anyhow, here are a couple photos - 15 x 8 steelies with 4.75" backspacing: