A body dana 60

No it is not, it is a truck housing that was cut down to fit into a A body, I don't think a truck housing can be machined for a pinion snubber do to oil passages in that area of the casting. Moser and Strange both sell Danas machined in that area for a lot more money. I just purchased a new Moser 60 that was machined for pinion snubber, powder coated, 35 spline axles and a spool with no brakes for $2800