Yukon Gear & Axle YP FSGM14T-3-40 Steel Spool GM 10.5" 14 Bolt Truck 30 Spline

The Yukon Gear & Axle YP FSGM14T-3-40 is a high-strength steel spool designed specifically for GM 10.5-inch 14-bolt truck rear differentials with 30-spline axles and 4.10 or numerically lower (higher number) gear ratios. A spool replaces the standard carrier and spider gears, creating a 100% locked differential that sends equal power to both rear wheels at all times.

Key Features:

• Direct replacement for GM 10.5-inch 14-bolt truck differentials
• Compatible with 30-spline axle shafts
• Designed for 4.10 and down gear ratios (4.10, 4.56, 4.88, 5.13, 5.38, etc.)
• High-strength steel construction for maximum durability
• 100% power transfer to both wheels for maximum traction
• Ideal for drag racing, rock crawling, and heavy towing applications
• Eliminates differential spider gears and clutches for reduced rotating weight

Spools are the strongest and most reliable option for vehicles that require maximum traction and don't need street-friendly turning characteristics. This Yukon spool is precision-machined to OEM specifications and engineered to handle extreme torque loads in dedicated race vehicles and off-road rigs.