Description
Product Overview
The Gearstar Billet Direct Drum for 4L80E/4L85E and TH400 transmissions is engineered for extreme torque and horsepower. This 4L80 direct drum is built for racers, off-roaders, and heavy-duty enthusiasts who demand reliability without compromise.
Performance Specifications
- Handles 1000+ HP: Built for brutal launches and high-stress conditions. The oversized sprag delivers unmatched holding power and durability. Say goodbye to sprag failures under load.
- Precision-Machined Billet: Made from high-strength 7075-T6 billet aluminum for superior rigidity and heat resistance. This drum won't flex or fatigue under pressure.
- OEM 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.
Key Features
- 36-Element Oversized Sprag
- Billet Aluminum Construction
- Factory-Size Frictions
- High-Capacity Clutch Design
- TH400 Compatibility
- Drop-In Ready
- Best For
- Quarter-mile racing and drag strip
- High-horsepower LS/LT builds
- Heavy-duty towing trucks
- Off-road 4L80E/TH400 applications
- Performance transmission rebuilds
- This billet direct drum is your transmission's best ally. It's the perfect blend of OEM compatibility and race-grade engineering. Whether you're chasing records or towing heavy loads, this drum doesn't just survive the abuse; it thrives in it.
- Ready to take your build to the next level? Contact Gearstar to order your premium billet direct drum today.
