Revolution Gear & Axle Dana 80 Rear Axle 5.13 Ratio Ring & Pinion Set

This kit includes the ring gear and pinion gear for your Dana 80 rear axle. Changing your axle ratio with a new ring and pinion set is a common upgrade when you've modified your vehicle, like adding larger tires or a heavy-duty towing setup. A lower ratio, like the 5.13 here, means your engine will turn more times for every rotation of your wheels. This can help bring your speedometer back into calibration after a tire change, improve acceleration, and make towing feel more responsive.

Revolution Gear & Axle makes these sets from strong steel, heat-treated for durability. The 5.13 ratio is a popular choice for trucks running 37-inch or larger tires, helping to restore lost low-end torque and making your truck feel more like it did with stock-sized tires. Proper installation is key for these parts, so make sure you follow the manufacturer's instructions closely, especially regarding gear pattern and backlash settings.