Yukon GM 14-Bolt Steel Full Spool - 10.5" Axle, 30-Spline

The Yukon GM 14-Bolt 30-Spline Steel Full Spool replaces the factory differential carrier with a solid connection between both axle shafts, keeping both rear 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 proven drivetrain setup for rock crawlers, rock bouncers, mud trucks, and dedicated competition vehicles where strength and traction take priority over street manners.

Built from precision-machined steel, this Yukon spool eliminates the internal spider gears, clutches, springs, and engagement mechanisms found in conventional differentials and lockers. Designed for GM 10.5" 14-Bolt full-float rear axles with 30-spline shafts, it supports 4.10-and-down standard gear configurations and compatible 4.56-and-up thick ring and pinion sets. It's a simple, durable solution for builders looking to eliminate differential complexity and maintain full-time traction under demanding off-road conditions.

Includes:

• (1) Yukon GM 10.5" 14-Bolt 30-Spline Steel Full Spool

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.