Yukon Dana 44 Steel Full Spool - 30-Spline, 3.92 & Up

The Yukon Dana 44 30-Spline Steel Full Spool replaces the factory differential carrier with a solid connection between both rear axle shafts, keeping both wheels locked together at all times. Unlike an open differential or automatic locker, a full spool eliminates differential action entirely, delivering consistent traction when climbing ledges, launching hard, or putting power down on uneven terrain. It's a straightforward drivetrain setup for rock crawlers, trail buggies, mud trucks, and dedicated competition builds where traction and strength take priority over street manners.

Built from precision-machined steel, this Yukon spool eliminates the spider gears, clutches, springs, and engagement mechanisms found in conventional differentials and lockers. Designed for compatible Dana 44 rear axles with 30-spline shafts and 3.92-and-up gear configurations, it provides a simple, durable replacement for the factory carrier. With no internal differential mechanism to engage or disengage, the spool keeps both axle shafts mechanically connected under demanding off-road and racing conditions.

Includes:

• (1) Yukon Dana 44 30-Spline Steel Full Spool - 3.92 & Up

Important: This spool permanently locks both rear axle shafts together and is not recommended for regular street driving. Carrier bearings, ring and pinion gears, and differential installation components are not listed as included.