Slip Yoke TH400 Hardened 5-1/2in Long

The Slip Yoke TH400 Hardened 5-1/2in Long by FAST SHAFTS is a critical drivetrain component engineered for high-performance transmission builds and vehicle restorations. This slip yoke serves as the connection point between your TH400 transmission output shaft and the driveshaft, allowing controlled axial movement while transmitting torque efficiently. Whether you're building a street rod, off-road rig, or drag racing platform, a quality slip yoke is essential for accommodating suspension travel and preventing binding or premature wear in the drivetrain system.

The hardened construction of this FAST SHAFTS component provides superior durability and wear resistance compared to standard slip yokes, particularly under high-torque applications and repeated axial cycling. The 5-1/2-inch length is precisely specified to match TH400 transmission geometry, ensuring proper spline engagement and slip travel range. The hardened steel yoke resists spline wear and galling, extending the service life of both the yoke and transmission shaft. This design maintains critical clearances while allowing the suspension to articulate without compromising driveline integrity or creating binding forces that could damage components.

Builders and technicians favor FAST SHAFTS slip yokes for TH400 transmissions in applications ranging from classic muscle car restorations to modern performance builds where reliability under load is non-negotiable. This component is ideal for vehicles with independent rear suspension, lifted trucks, or any setup where suspension travel exceeds the fixed driveshaft geometry. Installation requires proper spline alignment and lubrication of the slip interface, and compatibility with your specific driveshaft and transmission should be verified before purchase. Pair this hardened slip yoke with quality U-joints and a balanced driveshaft for a drivetrain that performs consistently across thousands of miles.