Yukon Gear Spool For GM & Chrysler 11.5in / 30 Spline

If you're building a dedicated off-road rig or a serious drag car, a Yukon Gear & Axle full spool is a smart way to get 100% traction to both rear wheels all the time. This spool replaces your factory differential carrier assembly, making installation straightforward for those familiar with differential work. It's designed specifically for GM and Chrysler 11.5-inch axles that use 30-spline axle shafts.

Yukon builds these spools from tough 8620 steel, then heat-treats them to make sure they can handle the extreme forces involved in off-road crawling or hard launches at the drag strip. Because it locks both wheels together, you get consistent power delivery to both tires, which is essential for getting unstuck on the trail or putting down maximum power off the line. This type of differential is not recommended for street-driven vehicles, as it will cause tire scrub and make turning more difficult in normal driving conditions.

This spool is a solid option for vehicles like the Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, Dodge Ram 2500, and Ram 3500, among others in the GM and Chrysler families that use the 11.5-inch axle. It's a significant upgrade for specialized applications where maximum traction is the only priority.