Speedmaster GM TH400 Turbo 400 Transmission Billet Aluminum Direct Drum PCE623.1013

This Speedmaster PCE623.1013 is a billet aluminum direct drum engineered for GM TH400 Turbo 400 transmissions. The direct drum is a critical internal transmission component that controls clutch engagement and torque delivery within the transmission assembly. Crafted from billet aluminum, this drum offers improved durability and precision engineering compared to stock cast alternatives, making it ideal for rebuilt transmissions, high-performance builds, and racing applications where reliability and consistent clutch apply is essential.

The billet aluminum construction provides superior material strength and finish quality, reducing wear on mating surfaces and extending transmission life. This direct drum is commonly used in transmission rebuild kits, street hot rods, drag racing engines, and performance restoration projects where OEM components are being upgraded or replaced. Direct fitment to GM TH400 transmissions ensures proper valve body alignment and clutch pack operation without modification.

Key Features & Benefits

• Billet Aluminum Construction: Precision-engineered from billet aluminum for superior strength and durability over cast components.
• Direct Drum Component: Controls clutch engagement and torque delivery within the TH400 transmission assembly.
• GM TH400 Compatibility: Direct fitment for GM Turbo 400 transmissions without modification required.
• Performance-Grade Material: Enhanced material quality suitable for high-performance, racing, and rebuild applications.
• Improved Surface Finish: Billet construction provides superior finish quality that reduces wear on internal mating surfaces.

Specifications

Ideal Applications

• TH400 transmission rebuilds and overhauls
• High-performance street rod and hot rod builds
• Drag racing and competition transmission applications
• OEM component replacement in custom transmission assemblies