Andrews Transmission, Fully Assembled, Ratios (2.400, 1.667, 1.380), 23" Setback
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Details
Details
Built for professional-level performance and durability, this fully assembled Andrews transmission is engineered to handle the intense demands of circle track and road-racing competition. Featuring precision gear ratios of 2.400 / 1.667 / 1.380 and a 23" setback configuration, this transmission provides optimal acceleration, balanced chassis dynamics, and consistent power transfer. Each unit is assembled to exacting standards to ensure smooth, reliable performance lap after lap.
Key Features
- Fully assembled Andrews transmission — race-ready and precision-built
- Close-ratio gearset (2.400 / 1.667 / 1.380) for tight RPM control and quicker acceleration
- 23" setback design enhances chassis balance and rear weight distribution
- Precision-ground gears and shafts for smooth, fast, and consistent shifts
- Manufactured from premium, heat-treated materials for maximum strength
- Ideal for high-RPM, high-torque racing environments
- Modular construction allows for quick ratio changes and easy maintenance
Gear Ratios
- 1st Gear: 2.400:1
- 2nd Gear: 1.667:1
- 3rd Gear: 1.380:1
- 4th Gear: 1.000:1 (Direct Drive)
Technical Specifications
| Brand | Andrews |
|---|---|
| Assembly | Factory-assembled, race-ready unit |
| Configuration | 4-speed close-ratio gearbox (4th gear direct 1:1) |
| Setback | 23" setback for optimal chassis balance and traction |
| Primary Use | Circle track, dirt late model, and road-racing applications |
| Serviceability | Modular construction allows for quick service and easy ratio swaps |
| Durability | Precision-machined internals ensure long life and consistent performance |
What's Included
- Complete Andrews transmission assembly (fully built and tested)
Shifter, linkage, bellhousing, clutch, release bearing, driveshaft, mount, and fluids are not included unless otherwise specified.
Installation & Setup Notes
- Ensure chassis compatibility with 23" setback mounting configuration
- Use high-quality racing gear oil per Andrews' recommendations
- Verify spline compatibility for both input and output shafts
- Torque-check all fasteners after the initial test session
- Professional installation is recommended for best results
Why Choose Andrews
Andrews transmissions are the choice of professional racers for their precision engineering, durability, and superior performance. Each gearbox is designed to deliver quick, confident shifts and consistent power delivery, ensuring you get the most out of every lap. Whether you're racing dirt, asphalt, or road courses, Andrews delivers the reliability and speed you need to stay competitive.