Revolution Gear & Axle GM 14-Bolt 10.5in Rear Axle 3.73 Ratio Ring & Pinion Set

If you're changing out your rear differential gears to a 3.73 ratio for better highway cruising or to accommodate larger tires, a solid ring and pinion set is key. This set from Revolution Gear & Axle is built for the robust GM 14-bolt 10.5-inch rear axle, a common setup in many heavy-duty trucks and SUVs.

Revolution Gear & Axle uses heat-treated, forged steel for these gears, ensuring they can handle the torque and stress of daily driving and towing. The 3.73 ratio is a popular choice because it offers a good balance, lowering your engine RPMs on the highway compared to stock gears, which can improve fuel economy, while still providing enough low-end grunt for getting moving or pulling a load. Precision machining helps ensure a smooth, quiet operation once installed correctly.

When installing a new ring and pinion, it's important to follow the manufacturer's break-in procedure. This typically involves a period of moderate driving without hard acceleration or heavy loads to allow the new gear teeth to properly mate and wear in. This set is designed to fit the GM 14-bolt 10.5-inch axle, but always double-check your specific vehicle's axle model to confirm compatibility.