A-body 8 3/4 rear, redrill small bolt to big bolt?

I have a drill jig, I use to drill axles/hubs and drums to the 4 1/2 incxh bolt pattern. I have had zero problems. I do recommend using 1/2 inch studs that screw into the axle flange. That way you drill a smaller hole, then would be required for press in studs, and allow more "meat" to the other holes. It is critical to have the holes drilled and tapped on the "exact" correct bolt circle, and square to the flange.