Speedmaster PCE659.1015 Ford Mustang Falcon HEH Toploader 27" 31 Spline Mainshaft

The Speedmaster PCE659.1015 is a genuine replacement mainshaft designed for Ford Mustang and Falcon models equipped with the HEH Toploader transmission. This 27" mainshaft features a 31 spline configuration, making it the correct fitment for classic Toploader transmission rebuilds and restorations. It delivers the authentic OEM-spec performance needed for vehicles undergoing transmission repair or complete drivetrain restoration.

This mainshaft is essential for anyone rebuilding a Ford Toploader transmission or restoring a classic Mustang or Falcon to original specifications. The precision-engineered design ensures proper mesh and durability when paired with compatible Toploader gears and components. Whether you're performing a complete transmission overhaul or replacing a worn shaft, the PCE659.1015 provides the reliability and fitment accuracy that enthusiasts and rebuild shops depend on for period-correct restorations.

Key Features & Benefits

• 27" Length: Engineered to OEM specifications for Ford Mustang and Falcon Toploader transmissions.
• 31 Spline Configuration: Matches original equipment design for proper gear engagement and power delivery.
• HEH Toploader Compatible: Direct replacement shaft for classic Ford Toploader transmission applications.
• Rebuild-Ready Design: Precision-manufactured for accurate fitment during transmission assembly and restoration work.

Specifications

Ideal Applications

• Ford Mustang Toploader transmission rebuild and restoration
• Ford Falcon HEH Toploader transmission overhaul
• Classic car drivetrain repair and original-spec reconstruction
• Transmission assembly and shaft replacement during major service