rear disc brakes vs rear drums

My 2 cents is to go with the drums on the back as the bulk of the stopping is done with the fronts. The problem with rear disc on 8 3/4 is you have to go with green bearings and remove the adjuster. I know that alot of people run these without any problem but I prefer the stock set up. You could also use the 8.8 from ford explorer with disc but you lose the drop out pig for gear swaps.