Billet Direct Drum for 4L80E/4L85E & TH400 Transmissions
Unleash the full potential of your transmission with our premium Billet Direct Drum, engineered for high-performance builds using the 4L80E, 4L85E, and TH400 platforms. Designed to handle extreme torque and horsepower, this drum is the ultimate upgrade for racers, off-roaders, and heavy-duty enthusiasts who demand reliability without compromise.
Key Features:
36-Element Oversized Sprag Built for brutal launches and high-stress conditions, the oversized sprag delivers unmatched holding power and durability. Say goodbye to sprag failures under load. Billet Aluminum Construction Precision-machined from high-strength billet for superior rigidity and heat resistance. This drum wont flex or fatigue under pressure.
Factory-Size 4L80E/4L85E Friction Compatibility Retains OEM friction dimensions for optimal clutch surface area and thermal management. No need to downgrade to smaller Powerglide frictions this drum keeps your build robust and reliable.
High-Capacity Clutch design Designed to hold additional clutches to provide maximum durability in extreme conditions.
TH400 Compatibility Seamlessly integrates with TH400 setups, making it a versatile choice for hybrid builds and custom applications.
Drop-In Ready Designed for easy installation with no need for custom machining or exotic components. Built to work with your existing clutch pack and transmission architecture.
Built for Performance: Whether you're chasing quarter-mile times or towing heavy loads, this billet direct drum is your transmission’s best ally. It’s the perfect blend of OEM compatibility and race-grade engineering. Ready to take your build to the next level? This drum doesn't just survive the abuse it thrives in it.Billet Direct Drum for 4L80E/4L85E & TH400 Transmissions Unleash the full potential of your transmission with our premium Billet Direct Drum, engineered for high-performance builds using the 4L80E, 4L85E, and TH400 platforms. Designed to handle extreme torque and horsepower, this drum is the ultimate upgrade for racers, off-roaders, and heavy-duty enthusiasts who demand reliability without compromise. Key Features: 36-Element Oversized Sprag Built for brutal launches and high-stress conditions, the oversized sprag delivers unmatched holding power and durability. Say goodbye to sprag failures under load. Billet Aluminum Construction Precision-machined from high-strength billet for superior rigidity and heat resistance. This drum wont flex or fatigue under pressure. Factory-Size 4L80E/4L85E Friction Compatibility Retains OEM friction dimensions for optimal clutch surface area and thermal management. No need to downgrade to smaller Powerglide frictions this drum keeps your build robust and reliable. High-Capacity Clutch design Designed to hold additional clutches to provide maximum durability in extreme conditions. TH400 Compatibility Seamlessly integrates with TH400 setups, making it a versatile choice for hybrid builds and custom applications. Drop-In Ready Designed for easy installation with no need for custom machining or exotic components. Built to work with your existing clutch pack and transmission architecture. Built for Performance: Whether you're chasing quarter-mile times or towing heavy loads, this billet direct drum is your transmission’s best ally. It’s the perfect blend of OEM compatibility and race-grade engineering. Ready to take your build to the next level? This drum doesn't just survive the abuse it thrives in it.

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Transmission Parts

Chevrolet 4L80/85E 300m Billet Main Shaft

Billet Direct Drum