Strange Engineering D1554 Pro Series Lightweight Steel Spool Ford - 9 33-Spline

The Strange Engineering D1554 Pro Series Lightweight Steel Spool is a high-performance differential spool designed for Ford 9-inch rear ends with 33-spline axles. This full-size spool locks both axle shafts together, forcing both rear tires to turn at the same speed for maximum traction in racing applications.

Key Features:

• CNC-machined from 8620 forged chromoly steel for superior strength and durability
• Lightened design reduces rotating weight for improved performance
• Heat treated for enhanced strength after critical dimensions are machined
• Finish machined after heat treatment to bring all surfaces within precise specifications
• Broached for 33-spline Strange axles with same spline locations as OEM differential
• Fits both 2.891-inch and 3.0625-inch bore cases
• More rigid ring gear mounting eliminates gear failure caused by case deflection
• Designed, machined, and forged in the USA by Strange Engineering

Important Compatibility Note: This spool is specifically designed for Strange 33-spline axles and will NOT fit Moser brand 33-spline axles or other manufacturers' axles. Spool bearings sold separately (D1586 for 2.891" bore case or D1588 for 3.0625" bore case).

Backed by Strange Engineering's Limited Lifetime Warranty, the D1554 provides race-proven reliability for drag racing, road racing, and other high-performance applications where maximum traction is essential.