Allison 1000 Transmission Stage 4 900+ HP Max
- Raybestos or ALTO G3 C-3/C-4 Torque Kit with custom machined pressure plates for maximum clutch capacity and holding power, perfect for high-horsepower applications.
- LML Style Pistons and Return Springs for faster, smoother shifts, ensuring peak performance on both the street and track.
- Raybestos or ALTO G3 C-1/C-2 Torque Kit delivering consistent, high-performance engagement under heavy loads and high speeds.
- Ratio Tek Pressure Upgrades to optimize fluid control and ensure reliable performance under extreme conditions.
- Transgo Trim Valves for precise control and superior shift quality.
- New Torrington Bearings for reduced friction and extended life under heavy stress.
- Randy’s Torque Converter with Billet Stator, custom stalls available for dialing in optimal performance for street or track.
- Billet Input Shaft, C-2 Hub, and Output Shaft for unmatched strength to handle extreme torque.
- Billet P-2 Planet for superior durability.
- HD Cast Aluminum Deep Pan for enhanced cooling and increased fluid capacity to keep things running smooth under pressure.
- New OE Filters to maintain clean fluid flow, essential for high-performance operation.
Why Choose Randy’s Stage 4 Allison Transmission?
At Randy’s, we don’t just build transmissions—we engineer them to exceed your expectations. Our Stage 4 Allison is the product of years of research, testing, and real-world experience. We’ve put this transmission through the wringer, on the street, track, and under extreme horsepower applications to ensure it’s the best in its class. This is why Randy’s Stage 4 Allison is the ultimate choice for true horsepower enthusiasts.
At Randy’s Transmissions, we stand behind the quality and durability of every transmission we build. The Stage 3 Allison transmission comes with a 1-year, 12,000-mile warranty, giving you peace of mind that your investment is protected. Whether you’re towing heavy loads or pushing your truck to the limit on the track, you can rely on our proven performance and customer support. Our commitment to excellence ensures that your transmission will perform as expected, mile after mile.