That wasn't quite what he was asking haha. But it's a step in the what I imagine is a long process, isn't very cost effective either. When I bought my cruze one of the reasons for the rs package was I preferred discs. Not worth the time to do a swap for ddRear drum removal is essentially the same as removing front drums, except for that pesky parking brake. Start by removing the wheels and then the dust cap, the center nut and washer and the brake-drum bolts.
1988 Supra is this was, uses standard inherently self adjustable rear calipers, just like the fronts, and cheap to replace. Then with drum brakes on the same disk for parking that never wear out. A very intelligent way of doing this, wish Chevy copied this.Rear discs on my Cruze are trouble free at 18 months and handbrake has not altered at all. Previous Commodore had original discs at 250,000k and were still good, only had pad changes every 3 years or so. This took about 20 minutes using a car jack only. Hand brake had an inbuilt drum as part of the rear disc so park brake is always good if used correctly and was never adjusted.