9-Inch Third Member with 4.11 Gear 31 Spline

The Currie Enterprises 9-Inch Third Member with 4.11 Gear and 31 Spline is designed for off-road enthusiasts and performance builders who demand enhanced torque multiplication and improved low-end acceleration. This complete rear axle assembly is a direct replacement for stock third members in vehicles equipped with a 9-inch rear end, making it ideal for lifted trucks, trail rigs, and modified 4x4s that operate at higher engine outputs.

Featuring a 4.11 gear ratio, this assembly effectively transforms engine power into wheel speed reduction, providing aggressive pulling power that enhances vehicle performance on challenging terrains and during heavy-duty towing. The 31-spline configuration is compatible with modern high-strength axle shafts and heavy-duty bearing assemblies, ensuring durability under sustained off-road conditions and elevated torque loads. The 9-inch housing format is known for its strength and compact design, facilitating seamless integration into both classic and contemporary vehicle platforms.

This third member is particularly beneficial for builders upgrading from 3.55 or 3.73 gear ratios who require deeper gearing for lifted vehicles with larger tires, underdrive situations, or single-speed rock crawling applications. Currie Enterprises' commitment to precision manufacturing guarantees proper bearing preload, backlash geometry, and noise-free operation, adhering to stringent quality control standards that surpass OEM specifications for longevity.