[Tim]

The rear hubs are sided, so make sure you have purchased the correct side. Both the sides are on ebay;

Genuine Ford Knuckle And Hub 1796135 | eBay

Genuine Ford Knuckle And Hub 1796136 | eBay

In terms of the calipers, yes they should unbolt from your old hub and bolt onto the new one.

I hope that is of help.