Time for new rear brakes on your Dodge Ram? This AutoShack set gives you a pair of rotors for the back axle. They're designed to fit 2003-2008 Ram 2500 and 3500 models, plus the 2006-2008 Ram 1500, with a bunch of different engines (3.7L to 8.0L, V6 or V8, 4WD or RWD). They're 13.9 inches (about 352mm) in diameter, made from durable cast iron, and have a precision-machined surface for smooth, even contact with your brake pads. This helps provide reliable stopping power and reduces vibrations or noise. Straightforward installation if you're doing a brake job – just remember to properly bed in the new pads and rotors afterward. A solid, no-fuss replacement to get your truck's rear braking performance back on track.