Yukon Gear Steel Spool For Dana 80 w/ 37 Spline Axles / 4.10+

If you're building a dedicated off-road rig or a serious drag racing machine, converting your differential to a 100% locked setup is a common goal. This Yukon Gear & Axle steel spool is designed to replace your factory differential carrier assembly in a Chrysler Dana Spicer 80 axle, providing constant traction to both wheels. It's a straightforward way to achieve full-time lockup, ensuring maximum power gets to the ground when you need it most, whether you're crawling over rocks or launching down the strip.

This spool is constructed from tough 8620 steel and then heat-treated for added strength, making it well-suited for the high demands of performance applications. It's specifically designed for Dana 80 axles that use 37-spline axles and are set up with a gear ratio of 4.10 or numerically lower (like 4.10, 3.73, etc.). Keep in mind that a spool provides 100% traction at all times, which can make steering more challenging on pavement. Because of this, it's not recommended for street-driven vehicles and is best suited for dedicated competition or off-road use.

Installation involves replacing your existing differential carrier, and this spool is designed to fit right in place. It's a popular choice for builders looking for a cost-effective way to achieve a fully locked differential for extreme conditions. Ensure your Dana 80 axle is equipped with 37-spline axles and a 4.10 or lower gear ratio before ordering.