Chrysler 8.25 Inch Rear Axle 3.90 Ratio Dual Drilled Ring and Pinion Revolution Gear - Revolution Gear and Axle - C8.25-390D

Revolution Gear and Axle ring and pinion manufactured to be compatible with Chrysler 8.25 Inch differentials. Our ring and pinions are manufactured with dual drilled ring gear bolt patterns to increase vehicle coverage to include fitment in 2004 and Newer Grand Cherokees as well as older models.

This premium gear set is engineered to elevate your driving experience, whether you're navigating the rugged trails off-road or cruising on the highway. Discover the unmatched benefits of upgrading your Ring and Pinion gear set and understand why it's an essential component in your vehicle.

Key Benefits:

Enhanced Capability and Performance: The optimized gear ratio improves torque delivery to the wheels, allowing for better traction and control. Towing performance is improved when you install the correct gear ratio for your vehicle setup by providing increased torque at lower speeds, making it easier to pull heavy loads without straining the engine. This means smoother, more efficient towing, whether you're hauling a trailer or carrying gear for your next adventure.

Increased Fuel Efficiency at Highway Speeds: Contrary to what one might expect, the right gear ratio can contribute to better fuel efficiency. By optimizing the engine's RPM at highway speeds, the ring and pinion gear set helps maintain a more efficient fuel consumption rate, saving you money and extending your journeys.

Superior Strength and Durability: Revolution Gear and Axle is renowned for their commitment to quality. Our ring and pinion gear sets are made from high grade steel using precision gear cutting and heat treatment processes that meet or exceed Original Equipment standards. This results in a product that not only performs exceptionally but also withstands the rigors of both daily driving and extreme off-road conditions.

Easy Installation and Quiet Operation: With over 40 years of manufacturing experience, Revolution Gear and Axle ring and pinions are preferred by installers for smooth and consistent setup. Our gear sets offer quiet operation, ensuring a comfortable ride without the annoying gear whine often associated with aftermarket gear sets.

Upgrading the Ring and Pinion set by Revolution Gear and Axle is more than just a modification; it's an investment in the performance, efficiency, and enjoyment of your vehicle.

All Revolution Gear and Axle Ring and Pinion gear sets are backed by a 2 Year Warranty against manufacturing defects. With products that have been Street, Off Road and Race proven, you can count on Revolution Gear and Axle products to be the most trusted in the aftermarket.

Revolution Gear and Axle Ring and Pinion Specs:


Ring Gear Rotation: Standard

Pinion Splines: 27

Material: 8620

Ring Gear Diameter: 8.25 Inch

Ring Gear Bolt Thread: 10 x 3/8 Inch and 10MM

Differential: Chrysler 8.25 Inch

Carrier Break: 2.45/2.71 Ratio

Cover Bolts: 10 Bolt

Country of Origin: Korea

Parts Included: Ring and Pinion Gear Set, Ring Gear Bolts not included