My 2004 Ranger came with rear drums, every spring I'd pull the drums, inspect the brakes, dump the dust out of the drums and put them back on. My 11 had rear discs, every spring I'd completely disassemble them- including pulling the discs to get at the parking brakes- grind the rust off all the slide points, lube everything up, and reassemble them. Unless you're towing or hauling heavy loads, rear discs are no better than drums. If you're braking hard, all the weight is on the front wheels. Guys who don't drive in road salt may disagree, I don't blame them, I'm jealous.